Privacy policy
Last updated: October 4, 2026
Spotter is a fitness app for Fire TV. Your phone's camera tracks your movement, and your TV counts your reps and coaches you. There are no accounts, no ads and no tracking.
Camera video never leaves your phone
Pose tracking runs on your phone, in the Spotter web page. No video or photo is sent or stored anywhere. Only 33 body points (positions like "left knee", as numbers) are sent, about 15 times a second, from your phone to your TV through our relay.
What we handle, and for how long
| Data | Why | Where, and how long |
|---|---|---|
| Body points (numbers, no images) | Counting reps on your TV | Passed through our relay on Amazon Web Services in real time. Not stored. |
| Pairing code and connection ids | Connecting your phone to your TV | Our server (Amazon Web Services). Expires after 2 hours and is then removed automatically. |
| Player names and workout progress | "Who's training?", your history and next targets | Only on your TV (device storage). Delete by uninstalling the app. |
| A player's name (optional) | So the coach can say it ("Let's go, Ramy!") | Sent to Amazon Polly to make 5 short voice clips. The clips are kept on our server for 60 days, then removed automatically. Skip naming a player to avoid this. |
| Workout numbers (reps, pace, depth), never your name | Optional AI rewrite of the coach's summary and of its tip between sets | Sent to an AI model (Cloudflare Workers AI). Not stored by us. |
| The coach's tip between sets, with the player's name if there is one | So the coach can say it out loud | Sent to Amazon Polly. The voice clip is kept on our server for 1 hour, then removed automatically. |
| Server logs | Keeping the service running | Amazon Web Services, deleted after 7 days. No video, no names. |
What we don't do
- No accounts, sign-in, email or phone number.
- No advertising, analytics or tracking, and no cookies.
- We don't sell or share personal data.
Children
Spotter is not directed at children under 13. Workouts with children should be supervised by an adult.
Health
Spotter gives general exercise feedback, not medical advice. Stop if you feel pain, and ask a doctor before starting a new exercise program.
Contact
Questions or requests: open an issue on the Spotter GitHub repository.