Privacy Policy
Last updated: 16 August 2026
Summary
BT Battery Notifier does not collect, transmit, or share any data. It has no servers, no accounts, no analytics, no ads, and makes no network connections of any kind.
What the app reads
To do its job, the app reads the following from the device itself, locally:
- The names and hardware addresses of the Bluetooth devices you have already paired
- The battery levels those devices report
- Whether they are currently connected
- The device's own battery level
This comes from the operating system and from the Bluetooth standard (the Battery Service, plus the battery notices the system receives from the accessory). It is used only to render the device list, the home screen widget, and the notifications you enabled.
Where it is stored
All of it stays on the device. Your settings and the last battery reading for each device live in the app's private storage, which only the app can read. Nothing is uploaded anywhere, and no third party has access to any of it.
Permissions
- Nearby devices (
BLUETOOTH_CONNECT) — required to see the devices you have already paired and read their battery levels. The app does not scan for new devices and does not request location access. - Notifications — for the low-battery and connect/disconnect alerts.
- Vibration — used only by the low-battery alert.
Permissions are requested on first use and can be revoked at any time in the system settings.
Removing your data
Uninstalling the app erases everything it stored. There is no copy anywhere else.
Children
The app does not collect data from anyone, including children.
Changes
If this policy changes, the updated version will be published at this same address with a new "last updated" date.