日本語 GRND

Support

Last updated: 20 August 2026

Contact

grnd.support@gmail.com

GRND is built and run by one person, so a reply can take a few days. When reporting a problem, it helps a lot if you include your device, your iOS version, and which screen you were on when it happened.

FAQ

Can I use it without an account?

The current version requires registration and sign-in. You can register with an email address and password, with an Apple ID, or with a Google account.

What happens when I change devices?

Just sign in to the same account on the new device and your data comes with you. Records are synced to the cloud, so no separate migration is needed.

I want to delete my account and data

You can delete them from the "Profile" screen in the App. This removes your account and every sleep, study, to-do, goal, and diary record linked to it.

This cannot be undone. Deleted data cannot be restored afterwards.

My data is not syncing

I am not getting notifications

Can I export the data I recorded?

The current version has no export feature. If you would like a copy of your records, contact grnd.support@gmail.com. We will verify your identity and send it to you.

Does it cost anything?

Recording sleep, study, to-dos, goals, and diary entries is free. Charts and the weekly review are part of the paid plan (auto-renewing). Prices are shown in your own currency on the "Premium" screen in the App, where you can also cancel or restore a purchase.

How is the sleep score calculated?

From the bedtime and wake-up time you entered, based on how long you slept and how regular your bedtime is. It is not a medical assessment. Treat it as a rough guide for looking back on your rhythm. If you are unwell, consult a doctor.

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