Last updated 23 August 2026
Liah is a personal screen-time app. One person installs it to manage their own device: they choose which of their own apps to hold back, and they earn free time by completing study material they scheduled for themselves. There is no parent and no child, and Liah never controls or monitors anyone else's device.
| Data | Why |
|---|---|
| Email address | To create and sign in to your account. |
| Phone number (optional) | Only if you choose phone sign-in. Held by Firebase Authentication and never written to our database. |
| Display name and username | So friends can find you and see who a message is from. |
| Profile photo (optional) | Shown to friends you have added. |
| Reflections | Your written answers to study prompts, saved so they survive a new phone. |
| Messages | Notes you send to friends inside the app. |
| Progress | Your streak, completed lessons, reading position and the studies you have scheduled, so they follow your account to a new phone. |
| Notification token | An identifier for your device, so we can send you a notification when a friend messages you or sends a friend request. It is not readable by other users. |
| Beta activity (beta testers only) | While Liah is in beta, your device sends a summary of your study activity — items finished and when, reflections written, current streak, app version, and when you last opened the app — so we can see whether the app is working for the people testing it. It contains no Screen Time or free-time data, and it stops when Liah leaves beta. |
| Usage and diagnostics | Firebase Analytics, to understand which parts of the app are used and where it breaks. |
Your email address and phone number are never visible to anyone, including friends. That is the entire reason usernames exist: someone can add you by username without you having to hand over a phone number or an email address.
People you have accepted as friends can see your display name, username, profile photo, your current study streak, and anything you deliberately send or share with them. Nothing else.
Your reflections are private to you unless you choose to share one.
Account data is stored using Google Firebase (Authentication, Cloud Firestore and Cloud Messaging) on Google Cloud infrastructure in the United States. Access is restricted by security rules so that an account can only read its own private data, and only the limited profile information above is readable by friends.
Messages are written by users, so Liah lets you block an account and report content. A report sends us the reported message, the account that sent it, and your reason, so it can be reviewed. Reports cannot be read by other users.
Your data is kept while your account exists.
You can delete your account from inside Liah, at any time, in Settings → Safety & Support → Delete Account. It is immediate and permanent, and it removes:
Messages other people sent to you are not deleted. That writing is theirs, and removing it would take their own words out of their app without their agreement — their side of a conversation with you remains theirs.
Reports are also kept. A report is a safety record about the account being reported rather than a record about you, no user can read it, and keeping it is what makes moderation possible.
Deleting the app on its own removes the data held on your phone but does not delete your account. If you would rather we did it for you, email liah.support@gmail.com from the address on the account.
Liah is not directed at children under 13, and we do not knowingly collect personal information from them. If you believe a child has created an account, email us and we will remove it.
If this policy changes materially, the date at the top will change and, where it matters, we will say so in the app.