Privacy Policy
Last updated: September 28, 2026
This is an English translation of the Japanese Privacy Policy. If there is any inconsistency between the two, the Japanese version prevails.
1. About the App
Majitore (the "App") is an app for managing your personal training records and trends in body composition and activity. This policy explains what information the App collects and how it is handled.
2. Information we collect
- Account information: your email address and password (stored by our authentication provider, Supabase; passwords are stored hashed and cannot be viewed by the developer)
- Training records: exercises, menus, weights, reps, notes and other content you enter
- Body records: body weight and body fat percentage, and steps and sleep time if you allow a connection
- Apple Health (HealthKit) data: body weight, body fat percentage, steps and sleep are read read-only. The App does not write to Health
- TANITA Health Planet: body weight and body fat percentage, only if you allow the connection
- Voice: the microphone is used only when you use voice input to log sets, and speech is converted to text by iOS speech recognition. Audio may be sent to Apple for recognition (handled under Apple's privacy policy). The audio itself is never stored on the App's servers
- Purchase history: if you buy the paid plan, we receive purchase history such as the product purchased, purchase date, expiry and renewal status. Payment information (such as card numbers) is processed by Apple, and the App never receives it
- Support messages: if you send a message from the in-app feedback and contact form, we receive its type and text, your account email address as the reply-to address, and device information to help investigate (app version, OS and browser type, language setting and your plan). The information attached is shown on the form. If you contact us by email, we receive your email address, the subject and the message
3. How we use information
We use the information only to store, display and summarize your records (trend charts, comparisons with previous sessions, checks against nutrition targets, etc.), to provide the paid plan (confirming purchases and determining available features), to respond to your messages and investigate problems, and to improve the App. We do not use it for advertising or advertising-related profiling.
4. Health data
Data read from Apple Health is used only for display and summaries within the App. It is not used for marketing or advertising, and it is never sold or provided to third parties. You can revoke access to Health at any time in iOS Settings > Privacy & Security > Health.
5. Sharing with third parties
We never sell your data to third parties. We use the following services only to the extent needed to operate the App.
- Supabase (database, authentication and file storage)
- Vercel (app delivery and hosting)
- RevenueCat (subscription platform; used to manage purchase history and subscription status, processed together with a user ID that identifies your account; Health data and training records are not sent)
- TANITA Health Planet (only if you allow the connection)
- Resend (to send emails such as sign-up confirmation and password reset; processes the recipient's email address and the email content)
- ImprovMX (relays email sent to our support address to the operator's mailbox)
- Slack (to notify the operator that a support message has arrived; we send the message type, an excerpt of the text, your plan and device type. For messages sent by email, we send the subject, an excerpt of the text and the domain part of the sender's address (after the "@"). We do not send your email address itself or your name)
We require these providers to handle data with protection equivalent to or greater than this policy.
6. Share links
If you create a "share link" in Settings, anyone who knows the URL can view your records and trends without signing in (they cannot edit). You can turn off a link at any time in Settings. You are responsible for who you share the URL with.
7. Retention and deletion
Data is kept while your account exists. You can delete your account and all of your data at any time from Settings → Account → Delete account. Deleting permanently erases your training records, weight, nutrition targets, share links and support messages, and they cannot be restored. Purchase history that Apple and RevenueCat keep under legal or accounting obligations is handled under their respective policies. Deleting your account does not cancel your App Store paid plan; cancel it in iPhone Settings. If you are unable to do so, please contact us below.
8. Contact
For questions about this policy or how your data is handled, use Settings → Feedback & contact in the App, or email support@majitore.app.
9. Changes
We may revise this policy as needed. For important changes, we will announce them in the App.