Privacy Policy
Effective 5 October 2026 (adds the Android app)
Shaper: Muscle Map shows which muscle groups your workouts trained and suggests sessions to fill the gaps. This policy explains what data the app uses and where it goes. The short answer: your data stays on your device: your iPhone and Apple Watch, or your Android phone. Sections 2 to 5 describe the iPhone and Apple Watch app; section 6 describes the Android app.
- We have no servers. Shaper: Muscle Map does not send your health data, or any other personal data, to us or to anyone else.
- No advertising, no analytics, no tracking, and no selling or sharing of data.
- Health data is read from Apple Health (iPhone and Apple Watch) or Health Connect (Android) only to show your results in the app, and only with your permission.
- You can erase everything Shaper: Muscle Map stored with "Erase everything": on iPhone in Settings → Sign out or erase data, on Android in Settings.
1. Who we are
Shaper: Muscle Map is published by XCTRA GLOBECO PRIVATE LIMITED ("we", "us"). On your Home Screen and in iOS Settings, the app's name is shortened to "Shaper"; it is the same app, and this policy covers only it: the iPhone and Apple Watch app and the Android app (package org.xctra.shaper). If you have questions about this policy, contact us at privacy@xctra.org.
2. Data from Apple Health (iPhone and Apple Watch)
With your permission, Shaper: Muscle Map reads the following from Apple Health (HealthKit):
| Data | Why Shaper: Muscle Map uses it |
|---|---|
| Workouts (type, start time, duration) | To work out which muscle groups each session trained, and your weekly plan progress. |
| Active energy and heart rate during workouts | To count harder sessions as more effort on the body map. |
| Steps | For the daily steps goal (only when your Shape plan has one). |
| Weight, height and body fat percentage | To estimate your body shape and suggest a plan. |
The Shaper: Muscle Map Apple Watch app saves the workouts you record with it to Apple Health, including their heart rate and energy samples, as any workout app does.
Shaper: Muscle Map reads this data on your device when you open the app and does not keep its own copy of your Health records. Health data is never used for advertising or marketing, never sold, never shared with third parties, and never stored in iCloud by Shaper: Muscle Map. You can change or withdraw access at any time in the iPhone Settings app: Health → Data Access & Devices → Shaper.
3. Data Shaper: Muscle Map stores on your iPhone
To remember your answers and preferences, Shaper: Muscle Map keeps a small amount of data in its own storage on your iPhone:
- Profile: the sex and height you entered (used for body-shape estimates).
- Body fat you enter by hand, with its date.
- Workout notes: what a strength or core workout trained (for example "Shoulders + Arms"), which workouts you switched off, and the sessions you started from the Plan tab (kept for two days).
- Preferences: colours, the Today / 3 days / 7 days choice, demo mode.
When you sign in, Shaper: Muscle Map stores your Sign in with Apple user identifier and, if you choose to share it, your first name, in the iOS Keychain. Shaper: Muscle Map does not ask for your email address.
This data stays on your device. It may be included in your own iPhone backup (iCloud Backup or a computer backup) if you have turned backups on; those backups are controlled by you and Apple, not by us.
Safety copy on this iPhone. So that you don't lose what you told the app, Shaper: Muscle Map also keeps a copy of the data listed above (not your Apple Health records) in this iPhone's Keychain, linked to your Sign in with Apple identifier. It is set to stay on this device only and is not synced through iCloud Keychain. Like your sign-in, iOS keeps it when the app is deleted, so your details come back when you sign in again or reinstall the app. Erase everything (Settings → Sign out or erase data) removes it.
Backup files you export. Settings → Export backup saves the data listed above (not your Apple Health records) as a file, in the place you pick in Apple's Files picker, for example On My iPhone or iCloud Drive. Settings → Import backup reads such a file back after you sign in again. Shaper: Muscle Map only does this when you tap these options, never sends the file anywhere else, and we never receive it. The file is yours: you can move or delete it in the Files app.
4. Sign in with Apple
Shaper: Muscle Map uses Sign in with Apple to know it is you on this device. Apple gives the app a random user identifier and, only if you allow it, your name. Each time the app opens, iOS checks with Apple that your Apple ID sign-in is still valid; this check is handled by Apple under Apple's Privacy Policy. We do not receive or store your Apple ID password.
5. iPhone and Apple Watch
When you tap "Start on Apple Watch", the iPhone app sends the chosen activity and planned length directly to your paired Apple Watch using Apple's WatchConnectivity. The Watch app reads your recent workouts from Apple Health on the Watch to show its own body map. Nothing passes through our servers, because there are none.
6. The Android app
The Android app works like the iPhone app, with these differences.
No account. The Android app has no sign-in of any kind: no Google sign-in and no Sign in with Apple. You tap "Get started" and use it.
Health Connect, read only. With your permission, Shaper: Muscle Map reads the following from Health Connect:
| Data | Why Shaper: Muscle Map uses it |
|---|---|
| Exercise sessions (workout type, start time, duration) and distance | To work out which of your 15 muscle groups each session trained, and your weekly plan progress. |
| Active calories burned, total calories burned and heart rate | To show workout calories and to count harder sessions as more effort on the body map. |
| Weight, height and body fat | To estimate your body shape and suggest a plan. These are estimates, not a diagnosis. |
| Steps | For the daily steps goal (only when your Shape plan has one). |
| Health data history | To read workouts older than 30 days for the History dashboard. |
Shaper: Muscle Map never writes to Health Connect. You can change or withdraw its access at any time in Health Connect's settings.
On your phone only. We have no servers, and the Android app does not request internet access at all, so it cannot send your data anywhere. Health data from Health Connect is not used for advertising, not sold and not transferred to third parties. The app has no ads, no analytics, no tracking and no third-party SDKs that collect data. This matches the app's Google Play Data safety section: no data collected or shared.
What Shaper: Muscle Map stores on your phone: its settings and your own entries (what a strength or core workout trained, which workouts you switched off, your profile, and weight, height and body fat you enter by hand), plus an encrypted safety copy of those details on the phone, protected by the Android Keystore.
Android's own backup. If you have turned on Android device backup in your Google account, Android may include Shaper: Muscle Map's settings in that backup, as it does for most apps. That backup is handled by Google under your own account; Shaper: Muscle Map does not send it anywhere itself.
Deleting your data on Android. Settings → Erase everything deletes everything Shaper: Muscle Map stored, including the safety copy. Uninstalling the app deletes it too. Shaper: Muscle Map never deletes or changes anything in Health Connect.
Not on Android yet: exporting and importing a backup file. That is available on iPhone only for now.
7. What we do not do
- No advertising and no advertising identifiers.
- No analytics, crash-reporting or tracking tools, and no tracking across other apps or websites.
- No selling, renting or sharing of your data.
- No location data, contacts, photos, camera or microphone.
8. Deleting your data
- Erase everything (open the app → Settings → Sign out or erase data → Erase everything) erases everything Shaper: Muscle Map stored: your profile, entries, workout notes and preferences, the safety copy, and your sign-in details from the Keychain. Plain Sign out keeps the safety copy so your details come back next time.
- Deleting the app removes its storage from your iPhone and Apple Watch, except your sign-in and the safety copy in the Keychain, which iOS keeps. To remove those too, use Erase everything before deleting the app.
- Backup files you exported stay where you saved them until you delete them in the Files app.
- Workouts the Watch app saved to Apple Health belong to your Health data; you can delete them in the Health app.
- On Android, see section 6: Settings → Erase everything, or uninstall the app.
- To stop using Sign in with Apple for Shaper: Muscle Map: Settings → [your name] → Sign-In & Security → Sign in with Apple → select the app → Stop Using Apple ID.
Because we hold no copy of your data, there is nothing for us to delete on our side.
9. Health information and limits
Shaper: Muscle Map is a fitness guide, not a medical device. Muscle coverage, body-shape results and fat areas are estimates based on your workouts and body measurements. They are not a diagnosis. Talk to your doctor before starting a new exercise or diet plan.
10. Children
Shaper: Muscle Map is not directed at children under 13, and we do not knowingly collect data from them. As Shaper: Muscle Map does not send data to us, we have no way to access such data. On Google Play the Android app is listed for adults 18 and over.
11. Changes to this policy
If we change how Shaper: Muscle Map handles data, we will update this page and its effective date before the change takes effect in the app. If a change means data would leave your device, we will ask for your permission in the app first.