250+ iOS apps curated and reviewed
The best frequency detector apps on iPhone average 4.5★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated October 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.5★ (17) | No | Yes | Oct 2026 | |
| 2 |  | Free | 4.6★ (162K) | No | Yes | Oct 2026 | |
| 3 |  | Free | 4.4★ (8) | No | No | Jul 2026 | |
| 4 |  | Free | 4.3★ (91) | Yes | Yes | Oct 2026 | |
| 5 |  | Free | 4.6★ (1K) | Yes | Yes | Oct 2026 | |
| 6 |  | Free | 3.3★ (6) | Yes | No | Oct 2026 | |
| 7 |  | Free | 5.0★ (1) | No | No | Aug 2026 | |
| 8 |  | Free | 4.7★ (340) | Yes | No | Oct 2026 |
This application transforms your device into a precise sound analysis tool. It offers real-time frequency detection, visualization, and data logging for musicians, engineers, and curious individuals. Gain clarity and accuracy in understanding the soundscape around you.
This app transforms your device into a professional sound level meter, precisely measuring ambient noise pressure. It offers advanced features like frequency analysis, historical data management, and dosimeter functions, making it useful for various applications and entertainment.
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.
