Summary
- No sign-up or login is required.
- Sound levels are calculated on your device. Recordings, measurement history and photos are stored only on your device and are never uploaded to the developer.
- Your location is used only to display an address; it is converted to an address by your phone's built-in geocoding service and is not collected by the developer.
- The app shows ads through Google AdMob, which may collect device identifiers and usage data. Purchasing "Remove Ads" turns off all ads.
1. Permissions and How They Are Used
- Microphone (RECORD_AUDIO): used on your device to measure sound levels. When you start a recording, the audio is saved in the app's private storage so you can replay it in History. Audio is never uploaded to the developer; it only leaves your device if you choose "Export Audio" and share the file yourself.
- Location (approximate and precise): used to show the address on the home screen, on recording records and on watermarked photos. The coordinates are passed to the address lookup service built into your phone (on most devices this is Google's geocoding service) to convert them into an address. The developer does not collect, store on a server or share your location.
- Camera: used only by the watermark camera. Photos are saved to your photo gallery (Pictures/Decibel) and are not uploaded. The watermark shows the sound level, time and address as visible text; please keep this in mind before sharing a photo.
- Notifications, foreground service and alarms: used to keep a recording running while the screen is off, to show its status with a Stop button, and to remind you when a scheduled recording should start.
- Videos and audio files you select: files you pick for analysis are processed on your device only and are not uploaded.
- Network access: used to load ads, complete purchases and look up addresses. The Advertising ID permission is used by the ads SDK.
You can turn off any of these permissions in your device settings at any time; the related feature may then be unavailable.
2. Data Stored on Your Device
Recordings, measurement history (maximum, average and minimum levels, duration, address and remarks), analysis results and settings such as microphone calibration are stored only on your device. The developer cannot access them.
Android cloud backup (Google account) may back up the app's settings according to your system settings; recordings and history are not included in cloud backup. When you move to a new phone using Android's device-to-device transfer, recordings and history may be copied to the new device. These backups and transfers are handled by Google and your device manufacturer.
3. Advertising (Google AdMob)
The app shows ads (banner, interstitial, app-open and rewarded ads) through Google AdMob, provided by Google LLC. When ads are shown, Google may automatically collect and process the following for ad delivery, frequency capping, measurement, fraud prevention and service improvement:
- Device or other identifiers: Android Advertising ID, app instance ID;
- Approximate location derived from IP address (country/city level);
- App interactions: ad impressions, clicks, app launches;
- Diagnostics: crash logs and performance data;
- Device information: model, OS version, language, network type.
This data is collected and processed by Google; the developer only sees aggregated ad reports. Data is encrypted in transit. See How Google uses information from sites or apps that use its services and the Google Privacy Policy.
Your choices:
- Delete or reset your Advertising ID in Android Settings → Privacy → Ads (or Settings → Google → Ads).
- Users in the EEA, UK and Switzerland see a consent form on first use and can change their choice at any time in the app under More → Privacy Settings.
- After purchasing "Remove Ads", the app no longer shows or requests any ads.
4. In-App Purchases
"Remove Ads" (one-time purchase) and optional tips to support the developer are processed by Google Play Billing. The developer never receives your card or payment account details — only a purchase confirmation used to unlock and restore the feature on your device. Tips do not unlock any features.
5. In-App Reviews
The app may invite you to rate it via Google Play In-App Review. Reviews are handled by Google; the developer does not receive your personal information.
6. Feedback
If you send feedback by email, we receive your email address and whatever you choose to include. We use it only to reply and improve the app.
7. Disclosure
We do not sell your information. The only information we receive is email you send us, which we do not disclose to third parties, except:
- when disclosure to a third party, administrative authority, or judicial authority is required by applicable law or a lawful request; or
- when you have given explicit consent to disclosure to an authorized party.
8. Information Security
Recordings and history are kept in the app's private storage, which other apps cannot read. Network communication with Google services is encrypted. If you believe your personal information has been compromised, please contact us promptly.
9. Retention and Deletion
You can delete records in the app at any time. Deleted records are kept in "Recently Deleted" for 30 days so you can restore them, and are then removed permanently together with their audio files. All on-device data is deleted when you uninstall the app or clear its data. Photos saved to your gallery remain there until you delete them. Ad-related data collected by Google is retained under Google's policies. To delete information you emailed to us, just let us know.
10. Children
The app is not directed to children under 13, and we do not knowingly collect personal information from children. If you believe a child has provided us information, please contact us to delete it.
11. Changes to This Policy
We may update this Privacy Policy when the app changes. The effective date at the top of this page shows when it was last updated. Significant changes will also be noted in the app's release notes.
Other apps published by Small App Lab are covered by the general Privacy Policy.
Contact Us
If you have any questions about this Privacy Policy or how the app handles data, please contact us at:
Email: william5062@qq.com