Privacy policy
Last updated 7 October 2026
GymSensei is a gym coach app. It is built so that your training, food and body numbers stay on your phone. This page explains what stays on your phone, what leaves it and why, and how to delete it.
- Your workouts, meals, weight, photos, form-check videos and health data stay on your phone.
- Nothing leaves your phone unless you use a feature that needs the internet: crews, Ask Sensei, photo scans, barcode lookups or signing 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 stays 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, steps, sleep) and the workouts the app saves there.
Your phone's own backup (iCloud or Google backup) may include this data, protected by your Apple or Google account.
What leaves your phone, and why
Your account (optional)
When you first join a crew or ask Sensei, the app creates a guest account. You can sign in with Apple or Google to keep it on a new phone. Your account holds:
- A random account ID, and your email address if you sign in with Apple or Google (Apple lets you hide your real email).
- The display name you choose, your invite code, who invited you, and any free Premium time from invites.
- For each crew: 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.
- How many times you've used Ask Sensei and photo scans, to apply the free and daily limits. Not what you asked.
This is stored with our backend provider, Supabase, on servers in Mumbai, India, encrypted at rest and in transit. If you live outside India, your account data is transferred there under Supabase's standard data protection terms.
Ask Sensei and photo scans (AI)
Sensei is powered by Claude, an AI made by Anthropic. Before you first use it, the app asks for your permission. When you ask a question, your message and a short summary of your plan are sent through our server to Anthropic so Sensei can answer. The summary includes your name, age, sex, height, weight, goal, experience, equipment, diet, today's food totals, streak and any injuries or soreness you've told the app about. Your weight may come from Apple Health or Health Connect.
When you scan your gym or kitchen, that photo is sent the same way. We don't keep your questions, answers or photos on our servers. Anthropic processes them under its commercial terms, keeps them only for a short time for safety checks, and doesn't use them to train its models.
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, steps 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 except when you ask Sensei a question as described above. 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 is kept until you delete your account. Deleting it removes your profile, crews you own, crew memberships, weekly numbers, photos, reports and blocks straight away, and from our 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 Your account, then Delete account. Or see how to delete your account without the app.
- Delete everything on your phone: Profile, then Delete everything.
- 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