Quick Summary: TrueLevel is a simple bubble level application that uses your device's built-in sensors to measure angles and tilt. We prioritize your privacy and only collect minimal data necessary for app functionality and advertising services.
1. Information We Collect
1.1 Device Sensor Data
TrueLevel accesses your device's accelerometer sensor to measure tilt and orientation angles. This data:
- Is processed locally on your device
- Is never transmitted to external servers
- Is used solely for measuring device orientation and displaying level information
- Is not stored permanently on your device
1.2 App Preferences and Settings
We store the following user preferences locally on your device:
- Theme Preferences: Your selected theme (Light, Dark, or Neon)
- Sound Settings: Whether sound effects are enabled or disabled
- Sensitivity Level: Your preferred sensitivity setting (Low, Medium, High)
- Calibration Data: Custom calibration offset values you set
- App Usage Counters: Internal counters for ad display timing
1.3 Advertising Data
TrueLevel displays advertisements through Google AdMob. AdMob may collect:
- Device advertising identifier
- IP address
- Device information (model, OS version)
- App usage patterns for ad targeting
2. How We Use Your Information
| Data Type |
Purpose |
Storage Location |
| Sensor Data |
Real-time level measurement and bubble display |
Processed in memory only |
| User Preferences |
Maintain your customized app experience |
Local device storage |
| Calibration Settings |
Provide accurate measurements based on your device |
Local device storage |
| Ad Interaction Data |
Display relevant advertisements and support app development |
Google AdMob servers |
3. Data Sharing and Third Parties
3.1 Google AdMob
We use Google AdMob to display advertisements. AdMob is governed by Google's Privacy Policy. AdMob may:
- Collect device and usage information for ad personalization
- Share aggregated, non-personal data with advertisers
- Use cookies and similar technologies
Important: We do not sell, trade, or transfer your personal information to third parties except as described in this policy.
3.2 Data We Never Share
- Your specific sensor readings or measurements
- Screenshots or images captured by the app
- Your calibration settings
- Any personally identifiable information
4. App Permissions
Required Permissions:
- INTERNET: Required for displaying advertisements
- ACCESS_NETWORK_STATE: Check network connectivity for ads
- Accelerometer Access: Essential for level measurement functionality
- Vibration: Provide haptic feedback when level is achieved
5. Data Security
We implement appropriate security measures to protect your information:
- All app preferences are stored locally using Android's secure SharedPreferences
- No sensitive data is transmitted over the internet
- Sensor data is processed in real-time and not stored
- We follow Android security best practices
6. Data Retention
- Sensor Data: Not stored; processed in real-time only
- App Preferences: Stored until you uninstall the app or clear app data
- Advertising Data: Managed by Google AdMob according to their retention policies
7. Your Rights and Choices
7.1 Your Control Options
- Reset Settings: Use the app's reset functions to clear stored preferences
- Disable Sounds: Turn off sound effects in the settings menu
- Advertising: Opt out of personalized ads through your device's ad settings
- Uninstall: Remove the app completely to delete all local data
7.2 Ad Personalization
To opt out of personalized advertising:
- Android: Settings > Google > Ads > Opt out of Ads Personalization
- Learn more: Visit www.google.com/policies/technologies/ads/
8. Children's Privacy
TrueLevel does not knowingly collect personal information from children under 13. The app is designed as a utility tool suitable for all ages, but we recommend parental guidance for younger users.
9. Changes to This Policy
We may update this Privacy Policy occasionally. When we do:
- We will update the "Effective Date" at the top of this policy
- Significant changes will be communicated through app updates
- Continued use of the app constitutes acceptance of the updated policy
10. Contact Information
Legal Basis: This privacy policy is designed to comply with GDPR, CCPA, and other applicable privacy regulations. We process data based on legitimate interest for app functionality and your consent for advertising services.