Privacy Policy
Crescendo · Last updated 5 November 2026
The short version. Crescendo stores your data on your device, optionally synced through your own private iCloud. There is no Crescendo account. We do not use analytics or advertising trackers, and we never sell your data. Purchases are handled by Apple; nothing else leaves your device.
1. Who we are
Crescendo is an iPhone app published by Nicolas Dojcilovic under the name SuiteForge, who is the data controller for the processing described below (see the legal notice). For any privacy question, contact us at suiteforgeops@gmail.com.
2. Data stored on your device
Everything you create in Crescendo is stored locally on your device using Apple's on-device frameworks. If you enable iCloud, this data may sync through your own private Apple iCloud account, which SuiteForge cannot access. We do not operate any server that stores your personal content.
Apple Watch
During a workout, your iPhone and your Apple Watch exchange the workout and the sets you log directly between your own devices, through Apple's WatchConnectivity framework. Nothing goes through a SuiteForge server.
Apple Intelligence (optional)
If you describe in a sentence how to adapt today's workout, the sentence is analysed on your iPhone by Apple's on-device language model. It is never sent to SuiteForge, to Apple's servers or to any third party.
Import, export and erase
Importing a workout history reads a file you choose, on your iPhone. Exporting creates a CSV or JSON file that you save or share yourself. Settings › Data also lets you erase all your data.
3. Permissions Crescendo may request
Apple Health, on Apple Watch (optional)
When you start a workout, Crescendo can start a strength-training workout on your Apple Watch. With your permission, the Watch saves the workout, your heart rate and your active energy to Apple Health, and reads them to show your heart rate during the workout and the calories of the session. This data stays in Apple Health on your devices and is never sent to SuiteForge.
Apple Health, your body weight (optional)
When you add a weigh-in or ask to see your Health weigh-ins, Crescendo asks for permission to read and save your body weight (body mass) in Apple Health. It reads the weigh-ins of the last 12 months, for example those of a connected scale, to show your weight curve in Progress, without copying them into the app, and saves to Apple Health the weigh-ins you log in Crescendo. This data stays in Apple Health on your devices and is never sent to SuiteForge. Erasing your data in Crescendo leaves the weigh-ins already in Apple Health in place.
Apple Health, your waist size (optional)
When you take your measurements or ask to see your Health waist size, Crescendo asks for permission to read and save your waist circumference in Apple Health. It reads the waist sizes of the last 12 months to show them with your measurements in Progress, without copying them into the app, and saves to Apple Health the waist size you log in Crescendo. Your other measurements (neck, shoulders, chest, arm, forearm, hips, thigh, calf) stay in Crescendo, on your devices and in your private iCloud. This data is never sent to SuiteForge. Erasing your data in Crescendo leaves the waist sizes already in Apple Health in place.
Camera and photos (optional)
When you take a progress photo, Crescendo asks for permission to use the camera. You can also pick a photo with the system photo picker, which gives Crescendo only the photo you choose and needs no permission. Each photo is re-encoded on your iPhone without its metadata (location included) and kept in Crescendo, on your devices and in your private iCloud. Crescendo never saves anything to your photo library, never writes photos to Apple Health and never sends them to SuiteForge. Erasing your data in Crescendo deletes your progress photos from your devices and your iCloud.
Face ID (optional)
If you turn on “Lock my photos”, Crescendo asks Face ID (or your iPhone passcode) before showing your progress photos. Authentication is handled by iOS; Crescendo never receives your face data.
Apple Health, your sleep, HRV and resting heart rate (optional)
When you tap “Use Health” in the Readiness line of the Today screen, Crescendo asks for permission to read your sleep (last night's asleep time), your heart rate variability (HRV, SDNN) and your resting heart rate in Apple Health. It reads them on your iPhone only, when you open Today, and compares them with your previous 28 days to offer a workout with one fewer set per exercise on tired days. These readings are never saved in Crescendo, never written to Apple Health and never sent to SuiteForge; only the check-in you choose yourself (Great, Okay, Drained) and whether the workout was made lighter are kept with the workout. Crescendo gives no medical advice.
Notifications (optional)
A notification with a sound at the end of each rest period during a workout, scheduled locally on your iPhone. Crescendo sends no other notifications.
Each permission is optional, is requested only when relevant, and can be changed at any time in the iOS Settings app.
4. Subscriptions and purchases
Crescendo offers an optional auto-renewing subscription and an optional one-time lifetime purchase. Purchases are processed entirely by Apple. Crescendo checks your purchases on your device with Apple's StoreKit framework and uses no third-party purchase service: no purchase information is sent to SuiteForge or to anyone other than Apple. See Apple's Privacy Policy.
5. What we do not do
- We do not require or create an account.
- We do not use third-party analytics or advertising SDKs.
- We do not track you across apps or websites.
- We do not sell, rent or trade your personal data.
6. Your rights
Because your content is stored on your own device, you remain in control of it at all times: you can edit or delete it within the app, and removing the app removes its local data. As Crescendo is published from France, the EU General Data Protection Regulation (GDPR) applies to the limited purchase-related processing described above; you may exercise your applicable rights of access, rectification, erasure and objection by contacting suiteforgeops@gmail.com.
7. Children
Crescendo is not directed to children under 13, and we do not knowingly collect personal data from children.
8. Changes to this policy
We may update this policy as the app evolves. Material changes will be reflected here with a new "last updated" date.
9. Contact
Questions about this policy? Email suiteforgeops@gmail.com.