CALLABack

Legal

Privacy Policy

Last updated: October 22, 2026

1. Who We Are

Data Controller:
Calla Ref GmbH
Gumpendorfer Straße 63F, 1060 Vienna
Austria
Email: contact@callaref.com

We operate the CALLA REF platform at app.callaref.com ("the Service"), a curated Reformer Pilates video streaming app. If you have questions about this policy, contact us at contact@callaref.com.

2. What Data We Collect and Why

2.1 Account Registration

When you create an account, we collect:

DataRequiredLegal Basis
Email addressYesContract (Art. 6(1)(b) GDPR)
First and last nameYesContract
Phone numberOptionalContract
Date of birthOptionalContract
Partner / hotel codeIf applicableContract

We use this to create and manage your account, verify your identity, and send transactional emails (account confirmation, password reset).

2.2 Subscription Data

We record your subscription plan (B2C: monthly or annual; B2B: per-seat monthly or annual, or Enterprise), activation date, and renewal date to provide access to content. For every payment that settles we also keep a payment record — the amount charged, tax, the Stripe processing fee, the settlement date and Stripe's identifiers — as accounting evidence and, where you signed up through a referral partner, as the basis of that partner's commission.

VAT on your subscription is charged at the rate of the country you live in, as you choose it when you subscribe (for a special tax territory, as your billing address shows). To determine and evidence that country we record, for each completed checkout: the country and any special tax territory you selected, the country of the billing address entered at checkout, the country VAT was charged for, the country of your card or bank account, the country your internet connection was in when the checkout started, and — if that connection was in another country than the one you chose — that you confirmed your choice, and whether at signup or at checkout. We store countries and territories only — not your address and not your IP address.

Where subscriptions are not yet available in your country or territory, you can join a waitlist. We then store your email address and country (and territory), on the basis of your consent (Art. 6(1)(a) GDPR), to send you one notification when they become available. You can withdraw at any time by writing to us.

If you ask us to call you back about a subscription for a studio, gym or hotel, we store the kind and name of the place, its city, its number of Reformers and the phone number or email address you give, to contact you about an offer (steps prior to a contract, Art. 6(1)(b) GDPR). You do not need an account for this. If the request came through a partner's website, we note that partner.

After your first payment we may ask once how you found us and whether you would like to tell us anything. Answering is optional; skipping it is also recorded, so we do not ask again. We use the answers to understand which channels bring members and to improve the service (legitimate interest, Art. 6(1)(f) GDPR). Please do not include health information in your message.

Legal basis: Contract (Art. 6(1)(b) GDPR); the payment record is retained under our statutory accounting obligation (Art. 6(1)(c) GDPR, §132 BAO), the country record under our VAT record-keeping obligation (Art. 6(1)(c) GDPR, Art. 63c of Implementing Regulation (EU) No 282/2011).

2.3 Usage and Progress Data

While you use the Service, we record:

  • Which videos you have watched and how many times
  • The audio language you listened to a class in (the original voice-over or a translated one)
  • Your session completion status per video
  • Your last watched timestamp per video
  • Fitness goals you set (weekly sessions, weekly minutes)
  • Your activity streak (current and longest)
  • Videos you have marked as favourites

Purpose: To power your personal dashboard, progress tracking, and personalised recommendations. The shared account of a studio or hotel kiosk has no individual dashboard; goals, favourites and streaks are not collected for it (see § 2.5). If you sign in on a studio's tablet with your own account, see § 2.5a.

Legal basis: Contract (Art. 6(1)(b) GDPR) — this data is core to the service you signed up for.

We also count, across all accounts, how often each audio language is played and finished, so we can decide which languages to offer next. These counts are only ever looked at in total, never per person. Legal basis for this count: our legitimate interest in improving the classes (Art. 6(1)(f) GDPR); you can object at any time (see Section 6).

2.4 Activity Logs

We log the following events with a timestamp, your IP address, and browser/device identifier (User-Agent):

  • Login
  • Logout
  • Session start / session end

Purpose: Security monitoring, abuse prevention, and session integrity.

Legal basis: Legitimate interests (Art. 6(1)(f) GDPR) — to protect the platform and our users from unauthorised access.

Retention: 90 days. Logs older than this are deleted automatically.

2.5 B2B / Hotel Guest Users

If you access the Service via a hotel or partner kiosk, your usage may be tracked under a shared account. The following data is recorded per session:

  • Video watched, seconds watched, completion status
  • Audio language of the class
  • Timestamp
  • At studios that offer sign-in with your own account (see § 2.5a): each visit to the tablet, meaning when it started and ended, how it ended (for example after a few minutes without use) and which functions were used, such as filters, search, favourites, music or the audio language, with the class where a function concerns one. A visit is not linked to a person unless they sign in with their own account.

This data is shared in aggregated, anonymised form with the hotel/partner for analytics purposes. Individual guest data is not shared with the hotel.

Legal basis: Legitimate interests of the hotel partner to understand service usage, and our legitimate interest in understanding how the Service is used on shared tablets so we can improve it.

2.5a Your Own Account on a Studio Tablet

At participating studios you can choose “Login” on the studio's tablet and confirm on your own phone. The tablet then shows your first name, your favourites and your statistics, and the classes you favourite or complete there are saved to your account. The studio's tablet keeps playing classes under the studio's own access; your account needs no subscription for this.

For every such sign-in we record: your account, the studio, its location, the tablet, when the sign-in started, when it was last active, when it ended and why. A sign-in ends, for example, when you tap “Done”, when the tablet has not been touched for about 10 minutes (a class that keeps playing counts as use for up to 75 minutes), after three hours at the latest, when the page on the tablet is reloaded, when you sign in on another tablet, or when the studio turns the feature off. While you are signed in we also record your visit to the tablet: when it started and ended, how it ended, and which functions you used, such as filters, search, favourites, music, the audio language or your statistics, with the class where a function concerns one. We use these records to provide the feature, to keep your sign-in bound to that one tablet, to detect misuse (for example, many different accounts on one tablet in a short time), and to understand how the feature is used so we can improve it. For your own account, including these records, we (Calla Ref GmbH) are the controller, not the studio.

What the studio sees: only aggregated, anonymous usage of its own tablets — never your name, email address, sign-ins or history. Your account is not tied to one studio and works at every participating studio. If a studio stops working with us, your own history stays in your account.

Who at CALLA can see it: authorised staff can look up an individual's sign-in records for support, to correct data or to investigate misuse. Every such lookup is itself logged.

Without a subscription of your own, your account does not play classes on your own devices. If you later subscribe, it is the same account and your history stays.

Legal basis: Performance of our contract with you for your favourites and progress (Art. 6(1)(b)); our legitimate interest in keeping shared tablets secure and preventing misuse for the sign-in record and the staff access log (Art. 6(1)(f)); our legitimate interest in understanding how the feature is used so we can improve it for the record of your visits (Art. 6(1)(f)). You can object at any time (see Section 6).

2.6 Voluntary Feedback

After a class, and from your profile page, we may invite you to answer a short optional feedback form. The form is hosted by Tally (see Section 4) and opens in a new tab. Answering is entirely voluntary and nothing changes for your account if you ignore or close it.

If you do open the form, the link carries three technical values so that we can make sense of your answer: your account ID (a random identifier, not your name or email address), the ID of the classyou had just finished, and how many classes you had completed at that point. We never pass your name, email address or payment data to the form. Anything else in a response is only what you type into it yourself.

Legal basis: Our legitimate interest in improving the classes and the app (Art. 6(1)(f)). You can object at any time, and you can ask us to delete your responses — see Section 6.

Business accounts are not shown this form at all.

When you cancel your membership, you can optionally choose one reason, related follow-up answers, how long you have used a reformer, and write a comment or what would have made you stay. We store these answers to understand why members leave. You can skip every question; cancellation never depends on answering. Stripe receives a standardised cancellation reason when provided, never your free-text answers.

We also store the offer type, outcome, whether you are in a trial, and the subscription and payment identifiers needed to apply an offer and enforce its one-time limit. An eligible offer is saved before it is sent to your browser. Leaving without accepting or cancelling keeps that same offer available while it remains eligible. Accepting the offer or cancelling through the app uses your one-time allowance. This includes app cancellation after an offer was saved but its response did not reach your browser. Cancelling through Stripe's backup billing page does not itself use this allowance.

Legal basis: Performance of your contract for the offer and its one-time limit (Art. 6(1)(b)); our legitimate interest in improving the service for the optional answers (Art. 6(1)(f)).

2.7 Follow-up by our team

Our staff review lists of accounts that may need a personal follow-up: a failed payment, a trial or demo ending, an unfinished checkout, a cancellation during the trial, a contract due for renewal, a signup through a referral partner, or a personal account used the way a studio uses it (business e-mail domain, two or more tablets in use at once, at least 12 classes in 30 days). The lists are produced automatically from your account, subscription and usage data; a person decides whether to contact you, and nothing about your access or price is decided automatically. We may note who looks after your account, a short note, and whether the follow-up is done or postponed.

Legal basis: our contract with you for payment and contract matters (Art. 6(1)(b) GDPR); otherwise our legitimate interest in looking after customers and offering a suitable plan (Art. 6(1)(f) GDPR). We contact you about offers by phone or e-mail only with your consent where the law requires it. You can object at any time, including to direct marketing (Art. 21(2)); we then stop following up, except for payment and contract matters, and keep a note of your objection.

2.8 Business contact persons and payment reminders

For a business contract we process the name and e-mail address of the billing contact named in a business contract, which we receive from the contract itself. We use them to send the payment link, a notice before each payment is due, payment reminders and notices that access was paused or restored under the contract. We keep a record of which reminders were sent and when, the payment method chosen (card or bank transfer), any pause our team agreed, and whether access is paused for an unpaid invoice.

Legal basis: the performance of the contract with the business (Art. 6(1)(b) GDPR) and, for the contact person, our legitimate interest in managing that contract (Art. 6(1)(f) GDPR). Recipients: Stripe (payment processing; the billing contact becomes the e-mail address of the business's Stripe customer record) and Resend (sending the e-mails). You can object to this processing at any time (Art. 21 GDPR); payment and contract matters continue to be handled under the contract.

Automated contract check: when our team sets up a signed business contract, the contract file is read by an AI model (Claude, provided by Anthropic) to fill in the setup form and to compare the finished setup against the contract before anything is sent. The contract contains the names, e-mail addresses, phone numbers and positions of the business's contact person and signatory. A member of our team reviews every value and makes the decision; nothing is decided automatically. We delete the uploaded file 30 days after it was uploaded (the signed contract is kept in our document storage as before); we keep the values read, the quoted contract passages and the warnings with the contract record. Anthropic keeps what it receives only for a limited period under its data processing terms. Legal basis: the performance of the contract with the business (Art. 6(1)(b) GDPR) and our legitimate interest in setting up contracts accurately (Art. 6(1)(f) GDPR). Recipient: Anthropic (USA), which does not use the contract to train its models.

Business playback measurement and recovery

For business accounts with measurement enabled, Calla Ref GmbH records actual advancing playback intervals, including short previews, against a pseudonymous account, verified tablet, video and playback session. We use these records to verify service delivery, investigate missing measurements and support usage-based agreements where agreed. They describe a shared tablet's playback, not the identity of an individual guest. Paused time and seeking are not treated as playback. Uncertain or missing records require review.

The tablet stores pending records locally in IndexedDB so they can survive reloads and temporary connection failures. This essential measurement and recovery storage is separate from optional marketing analytics. The queue is limited to 20 MiB per site; normal retries cover 14 days. Unacknowledged records are kept for recovery instead of silently deleted when they become too old or the queue is full. Browser storage removal or device loss can still destroy unsent records. Signing into a different account does not transfer their attribution. No passwords or playback access tokens are stored in these records. A temporary, tab-scoped session storage reference holds pseudonymous account, subscription, tablet, video and session identifiers to reconnect playback after a reload. This reference is used only when it matches the current account and playback identity, and is kept in tab-scoped session storage.

Legal basis: Our legitimate interests in reliable business service delivery, accurate accounting and resolving usage discrepancies (Art. 6(1)(f) GDPR); necessary statutory accounting retention follows Art. 6(1)(c) GDPR and §132 BAO. Business owners can request an assisted export or erasure review using the contact in §6.

3. Cookies and Local Storage

We do not use advertising cookies. Essential storage (keeping you signed in) is always active. Product analytics and session recording are off by default and only run if you opt in via the consent banner. You can change or withdraw your choice at any time using the "Cookie settings" link in the footer. Separately, we monitor video delivery quality (see “Mux Analytics” below) so that playback problems are detectable; this stores nothing on your device and is therefore not part of the consent banner.

StorageNamePurposeNecessary?
Cookie (session)Supabase auth tokenKeeps you logged inYes — required
localStoragecalla-music-volumeRemembers your music volume preferenceFunctional
localStoragecalla_consent_v1Stores your analytics consent choiceYes — required
localStoragecalla_device_tokenIdentifies this device for single-device sign-inFunctional
localStoragecalla_device_locationRemembers which studio location this device belongs to (business accounts)Functional
Cookie (1 hour)calla_marketRecords which price region your connection is in (EU, US or Australia), so prices are shown in the right currency. Derived from your IP address by our hosting provider; no IP address is storedFunctional
localStoragecalla:audio_lang_hint_seenRemembers which classes have already shown the “switch language” hint, so it appears once. Cleared when you sign outFunctional
localStorage / cookiePostHog & Google AnalyticsProduct analytics — set only after you opt inConsent required
sessionStoragecalla-partner-codeRemembers your hotel/partner context for the current sessionFunctional

Auth cookies are set with SameSite=Lax and Secure=true (HTTPS only). Session storage is cleared when you close the browser tab. localStorage volume preference is cleared on inactivity timeout (kiosk mode only).

4. Third-Party Services

We share your data with the following processors. Each has signed a Data Processing Agreement (DPA) with us as required by GDPR Art. 28.

ProcessorPurposeData SharedLocation
Supabase Inc.Database, authentication, file storageAll account and usage dataEU (Paris)
Mux Inc.Video streaming and deliveryVideo playback events, device type, IPUSA (SCCs in place)
Vercel Inc.Application hosting & basic web-vitals analyticsAll HTTP request data including IPUSA (SCCs / DPF)
PostHogProduct analytics & session recording — only with your consentUsage events, pages, device, IP, session replayEU (Frankfurt)
StripePayment processing & invoicingEmail, name, billing address, VAT ID, payment dataUSA (SCCs / DPF)
Calendly (Calendly, LLC)Booking an optional call with our team (for example a sales call for business accounts), only if you choose to book one.Name, email address, chosen time, anything you enter in the booking formUSA (DPF)
ResendTransactional & administrative emailEmail address, nameUSA (SCCs)
AnthropicAutomated reading and checking of signed business contracts during setup (business contracts only, see Section 2.8)Contract contents, including names, e-mail addresses, phone numbers and positions of contact persons and signatoriesUSA (SCCs)
Sentry (Functional Software, Inc.)Error monitoring & crash reporting — no session replay, no advertising useError messages, stack traces, page URL, browser typeEU (Frankfurt)
TallyOptional feedback form (see Section 2.6)Your answers, your account ID, the class ID, your class countEU (Belgium)
Google (Analytics 4)Web analytics — only with your consentPages, device, IPUSA (SCCs / DPF)

Mux Analytics: Mux collects basic playback analytics (buffering, startup failures, quality metrics, connection type and network operator) via inferred.litix.io. This data is used to ensure video delivery quality — it is how we detect that playback is failing in a studio or on a member's device. We have disabled Mux's viewer cookie. For business accounts with measurement enabled, opaque session and player-instance identifiers allow us to match a playback problem or missing record to the corresponding Mux views, including views created by player recovery. These identifiers are pseudonymous, not anonymous. Investigations are performed manually; Mux views do not automatically establish a billable amount. This does not enable viewer cookies or add business measurement identifiers to consumer playback. See Mux's Privacy Policy.

Sentry: Sentry receives technical error reports (error message, stack trace, page URL, browser type) when something goes wrong in the app, stored on EU servers in Frankfurt. There is no session replay and the data is never used for advertising. Legal basis: our legitimate interest in a stable, secure service (Art. 6(1)(f) GDPR) — this is not consent-gated analytics.

HaveIBeenPwned: When you reset your password, a partial hash of your new password is checked against the HaveIBeenPwned service to protect you from using compromised passwords. No identifiable data leaves your device — only a 5-character prefix of the password hash is transmitted.

AI-Generated Audio (Dubbing): Some sessions are additionally available with AI-generated dubbed audio in other languages, produced by an internal pipeline using Anthropic's Claude (translation) and ElevenLabs (voice synthesis) from the coach's original recording. In this pipeline Anthropic and ElevenLabs process no viewer data — it runs entirely on the coach's recording and never involves your personal data as a viewer. (Anthropic separately checks business contracts during setup; see the table above and Section 2.8.) When an AI-dubbed audio track is active, the video player displays a visible label identifying it as AI-generated, in line with Article 50(4) of the EU AI Act.

5. Data Transfers Outside the EU

Your account database (Supabase) is hosted in the EU (Paris), and product analytics (PostHog) in the EU (Frankfurt). Some processors are US-based (Mux, Vercel, Stripe, Resend, Anthropic, Google). Transfers to the USA are safeguarded by EU Standard Contractual Clauses (GDPR Art. 46(2)(c)) and, where the processor is certified, the EU–US Data Privacy Framework. Analytics processors (PostHog, Google) receive nothing from your browser unless you opt in. Independently of that choice, our servers send PostHog a small number of subscription-lifecycle events — checkout started, subscription activated or cancelled, payment failed, and changes an administrator makes to your access — linked to your account ID, so that we can operate and reconcile billing. These are sent to PostHog’s EU servers. This is billing telemetry, not behavioural tracking: your browsing and viewing activity is never sent without your consent.

6. Your Rights

Under GDPR, you have the following rights:

RightWhat it means
Access (Art. 15)Request a copy of all data we hold about you
Rectification (Art. 16)Correct inaccurate personal data
Erasure (Art. 17)Request deletion of your account and associated data
Portability (Art. 20)Receive your data in a machine-readable format
Object (Art. 21)Object to processing based on legitimate interests and, at any time and without giving reasons, to direct marketing
Restriction (Art. 18)Request we limit processing while a dispute is resolved

You can exercise the most common rights yourself in the app under Profile → Data & privacy: download a machine-readable export of your data, or permanently delete your account (deletion asks for your password, to confirm it is really you). Business accounts are an exception: they sign in on shared in-studio devices, so these self-service tools are not offered there — email contact@callaref.com and we will handle the request directly. For any other request, email contact@callaref.com; we respond within 30 days. Account deletion removes your profile and ordinary usage data from our active systems and cancels any active subscription where self-service deletion is available. Necessary business billing evidence is minimized and retained under a separate subscription reference; missing measurements and relevant disputes may require an assisted review. Two caveats: (1) billing/invoice records are kept for 7 years where Austrian tax law requires it (§132 BAO, GDPR Art. 17(3)(b)), in a form no longer linked to your profile; (2) data already transmitted to our processors (e.g. Stripe invoices, prior Mux/PostHog events, answers you gave in the feedback form) is removed on our documented request cycle, not instantly.

Feedback form responses are held by Tally rather than in your account, so they are not included in the self-service export or deleted automatically when you delete your account. Email contact@callaref.com and we will remove them; we respond within 30 days.

7. Data Retention

Data CategoryRetention Period
Account profileUntil account deletion
Video progress & favouritesUntil account deletion
Subscription records7 years (tax/accounting purposes)
Current checkout coordinationProvider identifiers until account deletion or replacement checkout; temporary billing payload cleared when checkout is created, otherwise after 7 days in the daily cleanup
Activity logs (IP, User-Agent)90 days
Partner login/watch events12 months
Sign-ins with your own account on a studio tablet (studio, location, tablet, time, how it ended)12 months; removed on account deletion
Studio-tablet sign-in codes and approvals7 days
Visits on a studio tablet (start, end, how it ended, functions used), linked to your account while you are signed in12 months; your own visits removed on account deletion
Log of staff lookups of individual studio-tablet sign-ins24 months; after account deletion without reference to your account
Record of changes to your access, contract terms and tablets (what changed, when, and whether you or CALLA staff made it; no passwords, document links or tablet names)Access and contract changes: 7 years from the end of the calendar year (§132 BAO); tablet removals and releases: 24 months; after account deletion without reference to your account
Business measurement raw records and nonbilling observationsUp to 12 months; ordinary nonbilling data is removed on account erasure. Only the necessary billing or dispute projection is retained longer.
Business usage billing evidence, terms and relevant review recordsOrdinarily seven years from the relevant calendar-year end (§132 BAO); longer where a relevant proceeding, applicable fiscal-year boundary or legal hold requires it.
Pending tablet measurement queueUntil durable acknowledgement or assisted recovery/removal. After 14 days, unacknowledged records require recovery review; they are not silently discarded.
Video & music playback events18 months
Consent & withdrawal-waiver recordsUp to 3 years after account closure (legal-claims defence)
Temporary copies of subscription emails used for reliable delivery (recipient, message and attachments)Cleared once the email provider accepts the message, or at the next hourly cleanup after three days. Minimal delivery identifiers, status and timestamps remain until account deletion to prevent duplicates. Original order details awaiting confirmation are cleared after successful confirmation or account deletion; statutory contract records follow their separate retention below.
Business contract records (B2B terms acceptance, plan changes & terminations)7 years (§132 BAO)
Settled payment records (one record per settled payment: amount, tax, Stripe processing fee, settlement date and Stripe identifiers; de-linked from your account on deletion)7 years (§132 BAO); 10 years for sales taxed under the EU One-Stop-Shop (Art. 63c Regulation (EU) No 282/2011)
VAT location evidence (per checkout: the country and any special tax territory you selected, and the countries of the billing address entered at checkout, of the VAT charged, of your card or bank account and of your internet connection, and whether you confirmed your chosen country when your connection was elsewhere; de-linked from your account on deletion)10 years from the end of the year of the payment (Art. 63c Regulation (EU) No 282/2011)
Country waitlist (your email address and country or territory, if you ask to be told when subscriptions open there)Until we have notified you, at most 24 months; removed earlier on request or when you delete your account
Business call-back requests (place, city, number of Reformers, phone number or email address)12 months, then deleted automatically; earlier on request, or when you delete an account registered under the same verified email address
Notes our team keeps on account follow-ups (owner, outcome, short note, handled or snoozed), and the to-dos for setting up a business contract (task, due date, done or not)12 months after the last change; a contract set-up to-do is kept until it is done, then deleted 12 months after completion; a note that you objected to direct marketing is kept until account deletion
Billing contact and payment-reminder records for business contracts (contact name and e-mail, payment method, reminders sent, agreed pauses, access paused for non-payment)Until account deletion; the record of what changed and when follows the business contract records below
Contract setup check results for business contracts (values read from the contract, quoted passages, warnings and the team member's confirmation; not the contract file)7 years from the end of the calendar year, with the business contract records (§132 BAO)
Unsent contract setups (the values read from a contract, quoted passages, warnings and the uploaded contract file)Deleted automatically 90 days after the last change; a setup that already created an account or an invoice is kept until our team resolves it, at the latest until that account is deleted. The uploaded contract file 30 days after it was uploaded
Payment links for business contracts (a protected reference to the link, its status and dates)Deleted automatically 90 days after the link was revoked or expired; earlier on account deletion
Studio spring configuration (including whether spring guidance is switched on), revisions, sources and internal confirmation/change recordsUntil account deletion; staff identifiers are removed when the staff account is deleted
Welcome answers (how you found us, your optional message)Until account deletion
Cancellation feedback (optional reason, follow-up answers, reformer experience and free text; saved offer, outcome, usage and subscription/payment identifiers)Until account deletion
Feedback form responsesUntil you ask us to remove them, or until your account is deleted (removed from Tally on our documented request cycle)
Billing & invoice records7 years (§132 BAO); 10 years for sales taxed under the EU One-Stop-Shop

8. Children

The Service is intended for users aged 16 and over. We do not knowingly collect data from children under 16. If you believe a child has registered, contact us at contact@callaref.com and we will delete the account promptly.

9. Security

We implement the following technical measures to protect your data:

  • HTTPS encryption in transit (TLS)
  • Row-Level Security on all database tables
  • Signed, time-limited video playback tokens (2-hour expiry)
  • Rate limiting on all API endpoints
  • Timing-safe webhook signature verification
  • Leaked password protection via k-anonymity hash check

10. Health and Fitness Disclaimer

The content provided through the Service — including all Reformer Pilates videos, instructions, and recommendations — is for general informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment.

Exercise involves a risk of injury. Follow the safety instructions and stop if you experience pain, dizziness or discomfort. This guidance does not exclude or limit liability for death or personal injury caused by negligence, or any liability, consumer guarantee, right or remedy that cannot lawfully be excluded or limited.

Before beginning any exercise programme, you should consult a qualified healthcare professional, particularly if you have pre-existing health conditions, injuries, or are pregnant. Choose exercises appropriate for your individual fitness level and physical condition, and seek professional guidance if you are unsure.

Reformer Pilates exercises may pose risks during pregnancy, and the Service is not designed for use by pregnant individuals. If you are or become pregnant, you must discontinue use of the Service and consult your healthcare provider before resuming any exercise programme.

The Terms of Service applicable to your subscription explain the contractual provisions on health, fitness and liability. This Privacy Policy does not impose an additional waiver of your rights.

11. Changes to This Policy

We will notify you by email and update the "Last updated" date at the top of this page if we make material changes. Where a change requires your consent under applicable law, we will request it separately. Continued use of the Service does not by itself provide that consent.

12. Contact and Supervisory Authority

Questions: contact@callaref.com

You have the right to lodge a complaint with your national data protection authority. In Austria: Datenschutzbehörde. In Germany: BfDI or your state authority.

United States: Depending on your state of residence and the law that applies, you may have additional privacy rights, including access, correction, deletion and opt-outs for sale, sharing or targeted advertising. Send requests to contact@callaref.com. The rights described in this policy do not limit any rights available under applicable state or federal law.

Australia: For access, correction or a privacy complaint, contact contact@callaref.com first. Where the Australian Privacy Act applies, if you are dissatisfied with our response or have not received a response within 30 days, you can lodge a complaint with the Office of the Australian Information Commissioner.