Legal
Privacy Policy
Last updated: October 4, 2026
This Privacy Policy explains what information Replex collects, how it is used, and your choices when you use the Replex app for iPhone and Apple Watch and this website.
1. Information we process
1.1 Information you create in the app
- Workout logs: exercises, sets, reps, weight, duration and completion status
- Workout templates, planned sessions and preferences
- Optional notes, app settings and a body weight you enter manually
- If you turn on Save location, the place where you added an exercise (one location and address per exercise; Replex doesn't record routes for strength workouts)
1.2 Account and subscription information
- Sign-in identifiers when you choose Sign in with Apple, and the basic profile you provide (such as your name and email)
- Subscription status used to unlock Pro features
1.3 Diagnostic and analytics information
- App usage events and product trends
- Crash and stability diagnostics
- Basic device and app information (for example app version, OS version and device type)
1.4 Optional permissions
- Apple Health: if you allow it, Replex reads steps, heart rate, active energy, walking and running distance, workouts and their routes, activity summaries, date of birth and body mass, and saves your workouts to Apple Health. Health data stays on your devices and in Apple Health; it is not used for advertising.
- Location: only for the optional Save location feature described above.
- Calendar: if you allow it, Replex can export planned workouts to a calendar you choose.
- Notifications: for workout reminders and when a rest period ends.
- Photos: add-only access, to save share cards you create.
1.5 AI Coach (Pro)
If you use the AI Coach, we process the following to provide answers, schedule proposals and template proposals:
- The messages you send to the Coach
- Context sent with each message: local date, time and time zone, units, optional profile and goals (such as your training goal and weekly goal), template names and identifiers, an optional workout you asked about, and tool results — workout, template and schedule data read on your device when the Coach requests it
- A sign-in token used to verify your account and Pro subscription
Nothing is written to your calendar or templates from the chat until you confirm it on your device. AI Coach output is not medical advice; see the Terms of Service.
2. How we use information
- Provide workout tracking, planning, progress and sync
- Enable subscriptions and Pro features
- Provide AI coaching, schedule proposals and template proposals (Pro)
- Improve reliability, performance and product decisions
- Respond to support requests and troubleshoot issues
- Keep the service secure and prevent abuse (including rate limits and moderation for the AI Coach)
3. Storage and sync
Replex stores your data on your device and syncs it through your private iCloud (CloudKit) when iCloud is on. Settings are shared between your iPhone and Apple Watch. Data in Apple services is also subject to Apple's terms and policies.
4. Third-party services
- Apple: App Store billing, iCloud/CloudKit sync, Apple Health and other platform services
- Firebase (Google): analytics, crash diagnostics, remote configuration, sign-in and your account profile
- RevenueCat: subscription and entitlement management
- Cloudflare Workers: the server that handles AI Coach requests
- OpenAI: language model processing of AI Coach messages and context (subject to OpenAI's policies)
- Google Analytics (website): traffic and engagement analytics for this website
AI Coach conversations are stored on our server (Cloudflare KV) for up to 30 days so the Coach can keep the thread, and you can clear them in the app at any time. Each provider processes data under its own policies.
5. Data sharing
We do not sell your personal information. We share information only when necessary to operate Replex, comply with legal obligations, enforce our rights, or protect users and the service.
6. Cookies and similar technologies (website)
This website uses analytics tags that may set or read cookies or similar identifiers to measure traffic and usage.
7. Security
We use reasonable administrative, technical and organizational safeguards. No method of storage or transmission is completely secure, so we cannot guarantee absolute security.
8. Your choices
- Manage permissions (Health, Location, Calendar, Notifications, Photos) in iOS Settings
- Turn iCloud sync on or off in iOS Settings
- Manage your subscription in the App Store subscription settings
- Clear AI Coach chat history in the app; the Coach requires an active Pro subscription
- Please don't send sensitive medical information in the Coach chat
- Contact us for help with your data
9. Account deletion
You can delete your account in the app (Profile › Account › Delete account). This deletes your account and its link to your Apple ID, your profile, and your AI Coach history on your device and our server, and revokes the Sign in with Apple authorization. You can also choose to delete your workouts from this iPhone and iCloud. Workouts already saved to Apple Health stay there, and an App Store subscription stays active until you cancel it with Apple.
10. Children
Replex is not intended for children under 13, and we do not knowingly collect personal information from children under 13.
11. International transfers
Your data may be processed outside your country by our service providers.
12. Policy changes
We may update this Privacy Policy from time to time. We will post updates on this page and revise the date above.
13. Contact
Questions about this Privacy Policy or your data: support@alexriakhin.com (or hello@alexriakhin.com).