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.






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 | — | Yes | Yes | Oct 2026 | ||
| 2 | Free | 3.7★ (12) | No | No | Oct 2026 | ||
| 3 | Free | 2.3★ (3) | Yes | No | Oct 2026 | ||
| 4 | $7.99 | 2.1★ (13) | No | No | Oct 2026 | ||
| 5 | $9.99 | 2.8★ (6) | No | No | Oct 2026 | ||
| 6 | Free | 4.4★ (1.3K) | Yes | Yes | Nov 2026 | ||
| 7 | Free | 4.5★ (1.9K) | Yes | Yes | Nov 2026 | ||
| 8 | Free | 4.7★ (298) | Yes | Yes | Nov 2026 |









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 app transforms your iPhone into a real-time sound level meter, measuring ambient noise in decibels (dB). It features a live gauge, time-based graph, and tracking of minimum, average, and maximum levels. Ideal for quickly assessing noise levels in various environments.