Delete your data

1. Which apps this covers

These instructions are for the two Android reading apps published by Ivan Ivanenko, an individual developer:

Our other applications — Librera1 Reader, Sound Icon, Menu Reminder and Menu Screenshot — are covered by section 13 of the Privacy Policy. Librera1 Reader is the only one of them with an account on our side, and it is deleted from the account screen inside that app.

2. There is no account to delete

Librera Reader and LibreraX do not create or store user accounts on any server of ours. There is no username, no password, no profile and no server-side copy of your library. We run no such server, so there is nothing for us to hold and nothing for you to close.

Where an app asks you to sign in with Google, that sign-in does exactly one thing: it authorises the app to reach your own Google Drive, so it can keep a backup there and hold your reading in step between your devices. The account is yours, the storage is yours, and the files are in your Drive rather than in ours.

Signing in is optional in both apps. If you never connect Drive, nothing at all leaves your device except the anonymous advertising and analytics traffic described in section 7.

3. Where your data actually is

Three places, and you control all three. The rest of this page takes them one at a time.

No row of this table is on a server of ours, because there is no server of ours.

4. Revoke the app's access to your Google Drive

This ends the connection between the app and your Google account. Do it from your Google account, where it takes effect whether or not the app is still installed:

1. Open myaccount.google.com/permissions — or go to your Google Account → Security → Your connections to third-party apps & services, which older versions of the page call Third-party apps with account access.
2. Find Librera or LibreraX in the list.
3. Choose it, then Delete all connections (older wording: Remove access).

From that moment the app can no longer read or write anything in your Drive. The token it held is void, and it has no other way in.

You can also disconnect from inside the app — sign out on its settings screen — but revoking in your Google account is the thorough version, and the one to use if the phone is gone.

5. Delete what the app put in your Drive

Revoking access stops the app reaching those files; it does not remove them, because they are yours and they are in your storage. To delete them:

1. Open drive.google.com in the same Google account.
2. Search for the app's folder or for its backup file — LibreraX writes a single JSON document named librera.app-backup-YYYY-MM-DD.json; Librera Reader keeps its synchronised books and progress in its own folder.
3. Delete what you find, then empty Trash in Drive — until you do, Google keeps deleted files for 30 days and they still count against your storage.

Nothing in that folder is copied anywhere else. Once it is gone from your Drive and your Trash, it is gone.

6. Delete the data on your device

Everything the app knows about your library — what you have read, where you stopped, what you marked, what you tagged, and every setting — is stored only in the app's private storage on that device. Two ways to remove it:

• Uninstall the app. Android deletes its private storage with it. Subject to how your device handles app backups, this removes the lot.
• Or clear it and keep the app. Settings → Apps → LibreraX (or Librera) → Storage → Clear storage. The app restarts as if newly installed.

Your books are not touched by either. They sit in the folders you chose, the apps only ever read them, and they stay exactly where they are — delete them yourself if you want them gone.

7. Analytics and advertising

Both apps report anonymous, aggregate usage through Google Firebase Analytics, and their free editions show advertising through Google AdMob. Neither carries your name, your email address or anything about what you read — no title, no author, no file name, no page. What they use is a resettable identifier for the app instance and for advertising. The detail is in sections 8 and 9 of the Privacy Policy.

• Reset or delete the advertising ID — Settings → Privacy → Ads on Android. Deleting it stops the identifier being available to any app.
• Uninstalling ends the reporting: the app instance identifier goes with the app, and a later install is a new one with no link to the old.
• Subscribing in LibreraX, or buying the paid version of Librera Reader, removes the advertising entirely.
• The F-Droid build of Librera Reader has no analytics, no advertising and no Google Drive feature at all — there is nothing there to delete.

This data is held by Google under Firebase's and Google's own policies and retention periods. We see only aggregate reports and can neither identify you in them nor pick a single person's events out of them.

8. What is kept, and for how long

• By us: nothing. We operate no server, no database and no account system for these two apps, so we retain no personal data about you — not for a period, and not indefinitely.
• In your Drive: for as long as you leave the files there. Deleting them and emptying Drive's Trash removes them; Google holds trashed files for 30 days first.
• On your device: until you uninstall the app or clear its storage.
• Analytics and advertising events: for Google's own retention period, under Google's policies, in anonymous and aggregate form.
• Purchase records: kept by Google Play as the seller, for as long as tax and consumer law requires of it. We hold no payment data of yours at any point.

9. Ask us instead

If you would rather we did it, or you are not sure what an app left behind, write to us and say which app you mean:

We answer within 30 days. Be aware of what we can honestly promise: for these two apps we hold nothing of yours, so a deletion request is us telling you exactly which of the steps above applies to your case — we have no copy to destroy on your behalf, and no way to reach into your Google account to do it for you.

See also the full Privacy Policy and the Terms of Use.