249+ iOS apps curated and reviewed
Out of 249+ hertz frequency detector apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.7★ (22) | No | Yes | Oct 2026 | |
| 2 |  | Free | 4.4★ (23) | No | Yes | Oct 2026 | |
| 3 |  | Free | 3.3★ (6) | Yes | No | Oct 2026 | |
| 4 |  | Free | — | No | No | Jul 2026 | |
| 5 |  | Free | — | No | Yes | Aug 2026 | |
| 6 |  | Free | 4.5★ (182) | No | Yes | Oct 2026 | |
| 7 |  | Free | 3.7★ (12) | No | No | Oct 2026 | |
| 8 |  | Free | 5.0★ (3) | No | No | Oct 2026 |
Generate precise audio tones for sleep, focus, and relaxation. Explore a wide frequency range, shape waveforms, and access presets like Solfeggio frequencies. An optional Pro upgrade unlocks all features.
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 iPhone into a powerful audio analyzer. It offers four distinct modes to measure sound frequencies, tune instruments, analyze motor speeds, and check mains stability. Advanced features include measurement history, comparison tools, and CSV export.
