Privacy policy
Last updated 10 October 2026
GymSensei is a gym coach app. It works fully on your phone, and signing in adds a private backup so nothing is lost when you change phones. This page explains what stays on your phone, what leaves it and why, and how to delete it.
- You choose how to use GymSensei: as a guest, with everything kept only on your phone, or signed in with Google or Apple, with a backup of your data kept in your account so it comes back on a new phone.
- As a guest, nothing about you is stored with us. Barcode lookups are the only thing that goes online.
- Progress photos and form-check videos always stay on your phone, even when you're signed in.
- We don't show ads, we don't track you across apps, and we never sell your data.
- You can export or delete everything from Profile in the app.
What's on your phone
- Your profile: name, age, sex, height, weight, goal, diet, injuries and the other answers you give when you set up the app.
- Workouts, sets, food logs, water, weight, check-ins, streaks and rewards.
- Progress photos and form-check videos. Form check reads your body position from the camera on the phone itself; the video is never uploaded.
- Your gym's location, if you turn on auto check-in. Location is checked on the phone and never sent to us.
- Health data from Apple Health or Health Connect (weight, sleep) and the workouts the app saves there.
As a guest, this lives only on your phone. Your phone's own backup (iCloud or Google backup) may include it, protected by your Apple or Google account. If you delete the app as a guest, it can't be brought back.
What leaves your phone, and why
Your account and backup (only if you sign in)
Signing in with Apple or Google is optional. Guests have no account with us at all. When you sign in, your account holds:
- A random account ID, and your email address from Apple or Google (Apple lets you hide your real email). Your name from Apple or Google is used only to fill in your name in the app.
- A backup of the app's data on your phone: your profile and answers from setup (including age, sex, height, weight, goal, diet and any injuries or health notes), workouts and sets, food logs, water, weight and body measurements, check-ins, streaks, rewards, plans and settings. It's updated automatically when you leave the app, so a new phone gets it all back when you sign in. Progress photos and form-check videos are not included.
- The display name crews see.
- For each crew you're in: your membership, and each week the number of days you trained, workouts done, your average form-check score and your streak.
- Gym photos you post to a crew, with their captions. Only that crew can see them.
- Reports you make about other people, and people you block.
This is stored with our backend provider, Supabase, on servers in Mumbai, India, encrypted at rest and in transit. Only you can read your backup. If you live outside India, your account data is transferred there under Supabase's standard data protection terms.
Other services
- Barcode scanning: the barcode number is sent to Open Food Facts to look up the product. Nothing else is sent.
- Exercise pictures are downloaded from GitHub, and coach plans and exercise videos from our server. Like any website, these servers see your IP address.
- Voice logging uses your phone's speech recognition (Apple or Google), which may process the audio under their own privacy policies. We never receive or record it.
- Sign in with Apple or Google is handled by Apple or Google, who tell us your account ID and email.
Health data
GymSensei reads weight and sleep from Apple Health or Health Connect, and saves finished workouts there, only after you connect it in Profile. Health data is used only to plan your training and food. It is never used for advertising, never sold and never shared. If you're signed in, a weight that came from Apple Health or Health Connect becomes part of your weight log, so it's included in your private backup. GymSensei's use of information received from Health Connect follows the Health Connect Permissions policy, including its Limited Use requirements.
Crews and what other people see
Your crew sees your display name, your weekly days trained, workouts, form score and streak, and the photos you post. They never see your food, weight, body measurements or logs. Crew members can report or block you, and crew owners can remove you. We review reports within a day and may remove content or accounts that break our crew rules.
Children
GymSensei is for people aged 13 and over. People under 18 need a parent or guardian's agreement to use it, and the app doesn't plan calorie cuts for anyone under 18. If you believe a child under 13 has an account, email us and we'll delete it.
How long we keep things
- Your account data, including your backup, is kept until you delete your account. Deleting it removes your backup, profile, crews you own, crew memberships, weekly numbers, photos, reports and blocks straight away, and from our server backups within 30 days.
- Data on your phone is kept until you delete it or uninstall the app.
Your choices and rights
- Export: Profile, then Export my data, gives you everything on your phone as a file.
- Delete your account: Profile, then Account, then Delete my account. Or see how to delete your account without the app.
- Delete everything on your phone: Profile, then Delete everything. If you're signed in, this signs you out and leaves your backup in your account, so you can restore it or delete your account.
- Correct: change your profile and display name in the app anytime.
- Depending on where you live, you may have more rights, such as asking what data we hold about you. Email us and we'll answer within 30 days.
Changes
If we change how the app uses your data, we'll update this page and tell you in the app before the change applies.
Contact
Questions, or anything to delete: support@gymsensei.app