Delete your data

Pannu Lekka has no account and no server. Your calculations are on your phone, so you can delete them yourself. There is nothing for us to delete.

Delete one saved calculation

1. Open your list of saved calculations.
2. Open the calculation you want to remove, and delete it. You can undo it for a few seconds.

Delete everything from your phone

Deleting cannot be undone. If you may want your calculations later, save a backup file first.

1. Open your phone’s Settings.
2. Tap Apps, then tap Pannu Lekka.
3. Tap Storage, then tap Clear storage. Or uninstall the app.

Menu names can differ a little from phone to phone.

Delete backup files you saved

Backup files are yours: the app cannot reach them after you save them. Open your phone’s Files app, find the .json backup files you saved and delete them. If you sent a backup file to someone or to cloud storage, delete it there too.

Delete summaries you shared

Images, PDFs and texts you shared stay in the chats and apps you sent them to. Delete them there.

Delete Android’s backup from your Google account

1. Open the Google Drive app.
2. Tap Menu, then tap Backups.
3. Choose your phone’s backup, then tap Delete backup.

This deletes the whole backup of that phone, not only Pannu Lekka. To stop future backups, open Settings, then Google, then Backup, and turn backup off.

Reset or delete your advertising ID

1. Open Settings, then Privacy, then Ads. On some phones, open Settings, then Google, then Ads.
2. Tap Delete advertising ID, or tap Reset advertising ID.

Clearing the app’s storage also clears your ad consent choice. The app asks again before it shows an ad.

Data held by Google

Data that AdMob collects is held by Google under its own privacy policy, which explains your choices.

Google Privacy Policy

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