App: BattScope: Battery Monitor Package name: com.mobilecastle.battscope Publisher: Mobile Castle Effective date: 1 November 2026
This Privacy Policy explains what information the BattScope app (“BattScope”, “the app”, “we”, “us”) does and does not handle, and how. Please read it together with the policies of the third parties named below.
By using BattScope you agree to the practices described here.
The rest of this policy gives the detail behind that summary.
BattScope does not collect personal data on its own servers, because Mobile Castle does not run a server that receives your data. Specifically:
BattScope reads Android’s public battery information: the battery level, charging status, power source (charger, USB, wireless or dock), current, voltage, temperature, the charge and energy counters, the charge cycle count (Android 14 and later), Android’s battery condition and Android’s own time-to-full estimate, where your device reports them. It also notes whether the screen is on, to tell drain with the screen on from drain with the screen off. Values your device does not report are shown as “not reported”.
The What this device reports page shows your device’s manufacturer, model and Android version. These are read from Android on the device; they are not sent anywhere.
Some information is stored locally on your device so the app can work and remember your settings. This data is not transmitted to Mobile Castle, and it is excluded from Android’s cloud backup. It includes:
All of it is removed when you uninstall BattScope. Settings → Clear history removes your sessions and battery history, and Clear all local data also removes your settings. See Data retention and deletion below.
BattScope is free and supported by ads served through Google AdMob, a Google service. Ads appear as banners on the dashboard, the session list, a finished session’s detail and the battery history, never while a recording runs, and never on the dashboard while it shows a battery warning. There are no full-screen ads when you open the app or move between screens.
The ad requests BattScope sends carry no content from the app: no battery reading, session, history or name you typed is ever passed to AdMob. To select and show ads, Google AdMob (and the Google Mobile Ads SDK included in the app) may collect and process information such as:
Google uses this information to serve and measure ads and to help prevent fraud and abuse, in accordance with Google’s own policies. Where required by law (for example, for users in the European Economic Area, the UK and Switzerland), BattScope uses Google’s User Messaging Platform to show a consent form before serving personalised ads, and no ad is requested until that choice is made; you can change your choice at any time in Settings → Privacy options. You may also choose to watch a short rewarded ad to unlock one charger comparison or one CSV export of a session; this is optional, the app says what the ad unlocks before it plays, and no rewarded ad is offered while a recording runs.
You can limit ad personalisation and reset your advertising ID in your device settings (Settings → Google → Ads on most Android phones).
This version of BattScope offers no in-app purchases. It does not connect to Google Play Billing, it asks for no billing permission, and no part of the app can start a payment. Some features are marked for a future Premium version; they show “Premium features are coming soon.” If purchases are added in a later version, this policy will be updated before that version is released.
BattScope requests the following Android permissions. Each is used only for the feature described:
POST_NOTIFICATIONS,
Android 13 and later), asked at run time only when you switch on an
alert, after BattScope explains why. If you decline, alerts stay inside
the app.FOREGROUND_SERVICE,
FOREGROUND_SERVICE_SPECIAL_USE): a recording you started
keeps running, with its notification, when you leave the app. It stops
when the charger is unplugged, the battery is full, you tap Stop, or
after 12 hours (charging) or 24 hours (discharge). There is no always-on
service.INTERNET): to load ads, and
for nothing else. Your battery data is never sent.AD_ID,
ACCESS_ADSERVICES_AD_ID,
ACCESS_ADSERVICES_ATTRIBUTION,
ACCESS_ADSERVICES_TOPICS) and
ACCESS_NETWORK_STATE for ads; and WAKE_LOCK
and RECEIVE_BOOT_COMPLETED, which Android’s WorkManager
uses to run the short battery check when Android allows (every 15
minutes at best) and to keep it scheduled after a restart.BattScope asks for no location, camera, microphone, contacts, storage, phone, SMS, Bluetooth, usage-access or battery-statistics permission.
BattScope relies on the following third parties. Their handling of information is governed by their own privacy policies:
| Service | Purpose | Policy |
|---|---|---|
| Google AdMob / Google Mobile Ads | Showing ads | https://policies.google.com/privacy and https://support.google.com/admob/answer/6128543 |
| Google User Messaging Platform | Asking for ad consent where the law requires it | https://policies.google.com/privacy |
When you share a CSV file, Android’s share sheet sends it to the app you choose (for example email, a messenger or a cloud drive). What that app does with it is governed by its own privacy policy. Rate BattScope opens Google Play, and Privacy policy opens this page in your browser.
BattScope is a general-audience utility and is not directed at children. We do not knowingly collect personal information from children. The app is intended for general audiences and, in line with the store listing, is not aimed at or designed to appeal to children.
Because the app shows ads, it follows Google Play’s Families and ads policies for a general-audience app. If you believe a child has used the app in a way that raises a concern, please contact us using the details below.
Data stored locally by BattScope (sessions, battery history, alert settings and recent alerts, the names you gave chargers and cables, your preferences, exported files and the diagnostic log) stays on your device and is retained until you remove it, except battery-history points, which are removed after 90 days. BattScope never deletes your sessions on its own.
You can delete this data at any time by:
Mobile Castle does not hold a copy of this data, so there is no separate server-side deletion request to make to us.
For data processed by the third parties above (for example Google’s advertising data), please use the controls those parties provide (see their policies linked above) and your device’s Ads settings.
Because BattScope keeps your data on your own device and does not run a Mobile Castle server, your data is not exposed on our infrastructure. A CSV file leaves your device only when you share it.
No method of electronic storage or transmission is 100% secure; while we aim to protect your information, we cannot guarantee absolute security.
We may update this Privacy Policy from time to time, for example if the app adds a feature that changes how information is handled. When we do, we will update the Effective date above and post the revised policy at the URL where this policy is hosted. Significant changes may also be noted in the app or its store listing.
If you have questions about this Privacy Policy or BattScope’s data practices, you can contact us at: