Thank you for using BIG3管理. If you have a question, a request, or a bug to report, please get in touch — we read everything.
This is an English version of the Japanese support page. Support is handled in Japanese and English.
Email: [email protected]
It helps us if you can include:
We usually reply within a few days.
Q. Does it cost anything? Every feature is free right now.
Q. Can I use the app in English? Yes. The app follows your device language, and you can switch between English and Japanese any time from the Profile tab under “Language”.
Q. I want to delete my data. Open the “Profile” tab and tap “Delete account”. This permanently deletes your account together with all of your records. See Account and data deletion for details.
Q. Will my data survive if I change phones? Yes. Your data is tied to the Google or Apple account you sign in with, so signing in with the same account on a new device restores everything.
Q. Why don’t I see the supplements I logged before? Supplements are stored per language, because the brands and products available differ by region. If you switch the app language, supplements you logged in the other language are hidden — they are not deleted. Switch back and they reappear.
Q. My workout or supplement won’t save. This is almost always a network issue. Check that you have a working connection and try again. If it keeps happening, email us with the details above.