Privacy Policy
Bubble Level & Angle Meter · last updated
1. Summary
Bubble Level & Angle Meter (“the app”) is a bubble level, clinometer and slope tool published by TeamCoolApps.
- Sensor readings are measured and shown entirely on your device. They are not stored, logged or uploaded.
- Camera frames are shown live only. A photo is saved to your device only when you tap Take a photo, and it is never sent anywhere.
- The app contains Google’s advertising SDK (AdMob) for one banner on the Tools list, never on a measuring screen. Ads are switched off until September 1, 2027: until then the SDK is never started, makes no network requests and collects nothing. From that date it may collect the device data listed in section 2. There are no analytics or crash-reporting SDKs.
- There is no account and no sign-in. Settings and calibration offsets stay in the app’s private storage on your device.
- The only thing that ever reaches the developer is the feedback message you choose to send, together with the app version and device model described in section 5. Your measurements, camera view and photos never reach the developer or Google.
2. Data we collect
The app itself collects no personal data. It does not collect your name, email address, phone number, contacts, location, photos, files or usage statistics.
The one exception from the app is the optional feedback form: if you write a message and tap Send, that message is delivered to the developer’s feedback endpoint. Sending feedback is entirely voluntary, and you can use every measuring feature without ever doing it.
The Google AdMob SDK included in the app is inactive until September 1, 2027; before that date it is never initialised and nothing below is collected. From that date, when the Tools list shows a banner, AdMob may collect:
| Data | Purpose | Collected by |
|---|---|---|
| Advertising ID | Ad delivery, frequency capping and measurement, and personalised ads where you allow them | Google AdMob |
| Device and app information, ad interactions | Ad delivery, fraud prevention, analytics | Google AdMob |
| IP address (approximate location) | Ad delivery and fraud prevention | Google AdMob |
AdMob never receives your measurements, calibration, camera view or photos: the app gives the ad SDK nothing from them. Google processes this data under the Google Privacy Policy and How Google uses information from sites or apps that use its services.
3. Data stored on your device
To do its job the app reads sensor and camera data and keeps a small amount of state on your device. Everything stays on your device and is removed when you clear the app’s storage or uninstall the app.
| Item | Where | Sent off device? |
|---|---|---|
| Accelerometer / gravity readings | Processed in memory while a measuring screen is open | Never |
| Calibration offsets per surface (flat, each edge) | App-private local storage | Never |
| Settings: theme, accent, units, precision, tolerance, sound, vibration, voice, keep-screen-on, run length, eye height | App-private local storage | Never |
| Saved vehicle and furniture profiles (dimensions, names) | App-private local storage | Never |
| Camera frames | Shown live on the Camera tab; never written to storage | Never |
| A photo you capture with the angle stamp | Your device’s gallery (Pictures/Bubble Level), or the app’s pictures folder on older Android | Never |
4. Permissions used
| Permission | Reason | When asked |
|---|---|---|
CAMERA | Show the live camera level line and take a stamped photo when you tap capture | When you open the Camera tab |
VIBRATE | Buzz at level and pulse near level, so you can measure without looking | Granted at install |
INTERNET, ACCESS_NETWORK_STATE | Send the feedback message you write, if you tap Send; and, from September 1, 2027, let Google AdMob load the Tools banner | Granted at install |
com.google.android.gms.permission.AD_ID | Lets Google AdMob read the advertising ID once ads are active (from September 1, 2027). Not read before then. | Granted at install |
The app also uses the device’s motion sensor, which needs no permission. It does not request location, storage, microphone, contacts or notification access.
5. Network activity and third parties
The app has no server of its own and no account system. Apart from the ad banner described below, its only network request is the feedback form:
| What is sent | Why |
|---|---|
| The message you write, the feedback type and the subject | To read and answer your feedback |
| Your email address, only if you type one in the optional contact field | So the developer can reply to you |
| App version and version code, device manufacturer and model, Android version and API level, app locale, timestamp | To reproduce bugs and understand which device the report is about |
This information is sent over HTTPS to a feedback collector operated for TeamCoolApps apps. It is used only to handle your message. It is not sold, not used for advertising, and not combined with any other data.
Third-party SDKs:
- Google AdMob — included, but inactive until September 1, 2027: the SDK is not initialised before that date, so it makes no requests and reads no identifiers. From that date it loads one banner on the Tools list (never on the Level, Angle, Camera or calibration screens) and may collect the device data in section 2. Where required (for example in the EEA and UK), you will be asked for consent before personalised ads are shown.
The app contains no analytics SDK, no crash-reporting SDK and no social SDK. No third party receives your measuring data, camera view or saved photos.
6. Children’s privacy
The app is a general-purpose measuring tool intended for general audiences and is not directed at children under 13. We do not knowingly collect personal information from children. The feedback form is the only way to contact the developer and it requires a deliberate action by the user.
7. Data retention and deletion
Nothing is stored on a server except feedback you choose to send. Feedback messages are kept only as long as needed to handle them.
- To delete all local settings and calibration data: Android Settings → Apps → Bubble Level & Angle Meter → Storage → Clear storage, or uninstall the app.
- To have a feedback message and any contact address deleted, email coolapphelpdesk@gmail.com with the approximate date you sent it.
Data collected by Google AdMob (from September 1, 2027) is retained by Google under its own policies. You can reset or delete your advertising ID in Android Settings → Google → Ads (or Settings → Privacy → Ads, depending on your device).
8. Security
Local data is protected by Android’s app sandbox: other apps cannot read the app’s private settings without root access. Feedback and ad traffic are transmitted over HTTPS. No method of transmission over the internet is completely secure, but the app keeps the amount of data it sends to the minimum needed to answer your message.
9. Changes to this policy
If the app’s data behaviour changes, this page will be updated and the date at the top will change. Material changes will be noted in the app’s release notes on Google Play. Continuing to use the app after an update means you accept the revised policy.
10. Contact
Questions about this policy or the app’s privacy practices:
TeamCoolApps
Support: coolapphelpdesk@gmail.com
Developer page: coolapphelpdesk-bot.github.io/about