JumpStart privacy policy
Effective 26 October 2026
JumpStart is an alarm that switches off only after your phone's camera has counted your exercise. It is available for iPhone and for Android, and is made by Avant Solutions ("we"). This policy explains what the app does with information about you. The short version: nothing leaves your device.
What the app collects
Nothing is sent to us. JumpStart has no user accounts, no server, and no analytics or advertising software. We do not receive your name, email address, location, usage data, or any other information about you. On Android the app does not hold the permission to use the internet at all.
The camera. When an alarm rings, JumpStart uses the camera to detect the position of your body and count repetitions. Frames are analysed in memory on your device and are discarded immediately: on iPhone by Apple's on-device Vision framework, and on Android by a pose-detection model (Google MediaPipe) that is bundled inside the app and runs offline. No video or photo is ever recorded, saved, or transmitted. If you decline camera access, you can use the walking or arithmetic tasks instead.
Motion and step data. For walking missions, and on iPhone as a fallback when the camera is unavailable, the app reads the phone's motion sensors and step counter. On Android this requires the "Physical activity" permission. This data stays on the device.
Alarm data. Your alarms and a history of your sessions (time, exercise, number of repetitions counted and rejected, and how each one was verified) are stored in the app's own database on your device. If you enable the adaptive-target option, the app reads this history to adjust your rep target. The history is deleted when you delete the app.
Health data
Health logging happens only if you grant the app access to Apple Health or Health Connect, and the app only ever writes health data. It never reads any.
- iPhone (Apple Health). Each completed set is written to Apple Health as a workout. You can revoke access at any time in Health › Sharing › Apps.
- Android (Health Connect). Each completed set is written to Health Connect as an exercise session and the active calories burned during it. You can revoke access at any time in Health Connect's app permissions.
JumpStart does not read, sell, or share health data, does not use it for advertising, and does not transfer it off your device. Its use of Health Connect adheres to the Health Connect Permissions policy, including the Limited Use requirements. Data already written to Apple Health or Health Connect stays there after you delete JumpStart, and you can delete it in those apps.
Purchases
On iPhone, the optional JumpStart Plus subscription and lifetime purchase are sold and processed by Apple through the App Store, and Apple's privacy policy governs that transaction. JumpStart reads only whether a purchase is active, from information StoreKit keeps on your device. The Android app has no purchases.
Diagnostic recordings
The app can save a numeric trace of a session — joint positions and confidence values, never imagery — to its own private storage on your device, to help diagnose detection problems. These files are not transmitted anywhere. If you choose to share one with us when reporting a problem, you do so manually and it contains no picture of you or your room.
Deleting your data
Everything JumpStart stores is on your device, so deleting the app deletes it. There is no account to close and nothing held by us to request.
Children
JumpStart is not directed at children under 13 and collects no information from anyone.
Changes
If this policy changes, the new version will be published at the same address with a new effective date.
Contact
Questions and requests: mr.mbkr96@gmail.com