Decibel Meter Terms of Use
Welcome to Decibel Meter (the "App"). These terms are an agreement between you and the yatyapp developer ("we", "us") about your use of the App. Please read them together with the Privacy Policy. By tapping "Agree and continue" or using the App, you accept these terms. If you do not agree, please stop using the App.
1. The service
The App provides real-time noise measurement (A / C weighting), a dB camera that records video with dB and time/place watermarks, history with playback, Excel export and sharing, voice-activated recording, Google sign-in, membership purchases and rewarded-ad quota. Actual features depend on the version you install. We may add, change or remove features as needed.
2. About measurement results
- The App estimates sound level with the phone's microphone. Microphone hardware, system audio processing, phone cases and placement all affect the result, so readings may contain significant errors.
- Results are for everyday reference only. They do not replace a calibrated professional sound level meter and must not be used as evidence for law enforcement, forensic assessment, occupational health evaluation, medical diagnosis or any other legally binding purpose.
- Address, coordinates and weather in the video watermark come from system location, geocoding and third-party weather services, and may be inaccurate or empty.
3. Acceptable use
You must follow the laws where you are and agree not to:
- record or distribute other people's conversations, voices or images without their consent, or otherwise infringe their privacy, portrait or other rights;
- use voice-activated recording or any other feature for covert recording, eavesdropping or unlawful surveillance;
- record in places where audio or video recording is prohibited;
- reverse engineer, crack or modify the App, or bypass payment, ad or quota limits;
- use the App for any illegal activity.
You decide whether to enable voice-activated recording and are responsible for what you record and share. When sharing videos with a location watermark, protect your own and others' location privacy.
4. Accounts
No registration is needed to use the App. Buying or restoring a membership requires signing in with a Google account, which is provided and managed by Google. You must follow Google's terms and keep your account secure.
5. Paid features and ads
- Free quota: free users can keep up to 20 measurement records.
- Rewarded ads: each fully watched rewarded ad adds 5 records to your quota. No quota is granted for ads that are not watched to the end.
- Membership: a one-time purchase through Google Play, not an auto-renewing subscription. Benefits include unlimited records and ad removal, as shown on the purchase page. The price is shown by Google Play.
- Restore: after switching devices, clearing data or reinstalling, sign in with the Google account used for the purchase and tap "Restore purchase".
- Refunds: purchases, charges and refunds are handled by Google Play under the Google Play refund policy. Membership benefits are revoked once a refund is completed.
- The App shows ads served by Google AdMob. Advertisers are responsible for ad content.
6. Your content
Records, audio, video and exported files you create with the App belong to you and are stored only on your device by default. We do not access, use or back up this content. Because data is stored locally, uninstalling the App, clearing its data or device failure may cause loss. Please keep your own backups.
7. Intellectual property
The App's software, interface design, icons, text and related content are owned by us or the relevant rights holders. Subject to these terms, we grant you a personal, non-exclusive, non-transferable license to use the App.
8. Third-party services
The App includes third-party services such as Google AdMob, Firebase, Google Sign-In, Google Play Billing and Open-Meteo weather. When using them, you are also bound by their providers' terms. Their availability and content are the providers' responsibility.
9. Disclaimer and limitation of liability
- The App is provided "as is". We try to keep it working but do not guarantee uninterrupted or error-free service, or that results fit your particular purpose.
- We are not liable for service interruption or data loss caused by device hardware, system limits, network failure, third-party service issues or force majeure.
- We are not liable for losses from using results for professional, legal, medical or similar purposes, or from your breach of these terms.
- To the maximum extent permitted by law, our total liability does not exceed the amount you actually paid for the App.
10. Changes and termination
We may revise these terms when features change or the law requires it. The revised version will be posted on this page with a new date. Continuing to use the App after a revision means you accept it. You can end this agreement at any time by uninstalling the App. If you breach these terms, we may restrict or stop providing the service to you.
11. Governing law and disputes
These terms are governed by the laws of the People's Republic of China (for this purpose excluding the laws of Hong Kong, Macao and Taiwan). Where mandatory laws of your place of residence give you greater protection, those laws apply. Disputes should first be resolved through friendly negotiation; failing that, either party may bring a claim before the competent people's court where we are located.
12. Contact us
If you have any questions about these terms, email: zhangjunfeng020@gmail.com.