Privacy Policy

Last updated: 2026-08-12

This policy explains what the Batbrief Android app (com.gpm.batbrief) does with data. It covers the app only.

The short version: nothing leaves your device. Batbrief has no account, no server, no analytics and no internet permission. It cannot send anything anywhere, and that is a property of the app as built rather than a promise about how it is configured.

Who is responsible

Gabriele Proietti Mattia is the data controller for the processing described here. Contact: apps@gpm.name.

What leaves your device

Nothing.

The app declares no permissions at all in its manifest — including no INTERNET permission. Android enforces that: an app without it cannot open a network connection, whatever its code tries to do. There is also no networking code in the app, no advertising or analytics library, and no crash-reporting service.

You can verify this. The source code is available, and the permission list of the installed app is visible in Android’s own app info screen.

What the app reads, and where it keeps it

Batbrief analyses a bug report — the diagnostic file Android produces from Developer options → Bug report, or through adb bugreport. It never generates one itself and never goes looking for one: the file reaches the app only when you share it or pick it, through Android’s share sheet or file picker, which grant access to that one file and nothing else.

A bug report is a very revealing file. Depending on your device and Android version it can contain the names of Wi-Fi networks you have joined, the accounts configured on the phone, the text of recent notifications, a complete list of your installed apps, device identifiers and system logs. This is why the app is built the way it is.

What Batbrief does with it:

1. Streams the file and copies only the battery-history sections into the app’s private cache directory, which no other app can read.
2. Analyses that extract on the device.
3. Deletes it when you close the report.

Uninstalling the app removes everything, as it does for any app’s private storage. The original bug report file is yours and stays wherever you saved it; Batbrief neither moves nor deletes it.

What the app stores

Only its own settings — the theme, the language, and the hours you consider night. They live in the app’s private preferences. No analysis results are kept between sessions.

If Android’s app backup is enabled on your device, those settings may be included in your own device backup, under Google’s terms. No bug report data is ever written anywhere that a backup could pick it up.

What the app never does

• No account, sign-up, email address or contact list.
• No advertising, and no sale or sharing of data with anyone.
• No tracking, across this app or any other.
• No crash reports, no usage statistics, no telemetry of any kind — not even optional ones.
• No reading of your files, photos, contacts, messages or call history. It has no permission to.

Permissions

None. That is the entire list.

The file arrives through Android’s own share and document-picker mechanisms, which pass a temporary grant for a single file rather than a standing permission.

Legal basis (GDPR)

For readers in the EU/EEA and the UK: because no personal data is transmitted to or processed by Gabriele Proietti Mattia, there is no processing here to which a legal basis under Article 6 would attach. Everything happens locally, on your device, under your control, in the same sense that opening a file in a text editor is not a transfer of data to the editor’s author.

Retention

None. The app holds nothing beyond your device, and its local extract of a report is deleted when the report is closed.

Your rights

Under the GDPR you may request access to, correction of, or deletion of your personal data. Because Gabriele Proietti Mattia holds no data about you from this app, there is nothing to access, correct or delete on that side; deleting the local data is done by closing the report or uninstalling the app. You retain the right to lodge a complaint with a supervisory authority.

Write to apps@gpm.name for any request.

Children

Batbrief is not directed at children under 13 and knowingly collects no data from them — or from anyone.

Changes

Material changes will be published on this page with a new date at the top, and significant ones will be noted in the app’s changelog. Should a future version ever need to send anything off the device, it would require a new permission that Android shows you, and it would be announced here first.

Last updated: 2026-08-12