Measure and monitor sound levels in decibels using your device's microphone. Receive alerts for high noise levels, track historical data, and calibrate for accuracy. Unlock advanced features with a subscription for professional sound analysis.





249+ iOS apps curated and reviewed
Finding the right sound detector ultrasonic apps can be overwhelming with so many options. We've analyzed 249+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 5.0★ (3) | No | Yes | Sep 2026 | ||
| 2 | Free | 4.4★ (8) | No | No | Jul 2026 | ||
| 3 | $9.99 | 2.8★ (6) | No | No | Sep 2026 | ||
| 4 | $7.99 | 2.1★ (13) | No | No | Aug 2026 | ||
| 5 | Free | — | Yes | No | Sep 2026 | ||
| 6 | Free | — | No | No | May 2026 | ||
| 7 | Free | 4.5★ (1.8K) | Yes | Yes | Sep 2026 | ||
| 8 | Free | 4.7★ (340) | Yes | No | Sep 2026 |





Measure and monitor sound levels in decibels using your device's microphone. Receive alerts for high noise levels, track historical data, and calibrate for accuracy. Unlock advanced features with a subscription for professional sound analysis.



Visualize sound waves in real-time by detecting and displaying their frequencies in Hertz. Experience an augmented reality view of the audio environment around you.






This tool measures and analyzes low-frequency sounds that are difficult for the human ear to detect. It helps identify potential noise pollution from sources like construction or factories, providing detailed reports on frequency components and sound levels.