249+ iOS apps curated and reviewed
With an average user rating of 4.2★, the sound frequency counter category is one of the App Store's strongest. Browse all 249+ apps we track, sorted so the most loved ones surface first.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 3.3★ (6) | Yes | No | Aug 2026 | |
| 2 |  | Free | 4.7★ (340) | Yes | No | Sep 2026 | |
| 3 |  | Free | 4.7★ (17K) | No | No | Oct 2026 | |
| 4 |  | Free | 3.8★ (9) | Yes | No | Aug 2026 | |
| 5 |  | Free | 4.4★ (8) | No | No | Jul 2026 | |
| 6 |  | Free | 4.5★ (17) | No | Yes | Sep 2026 | |
| 7 |  | Free | 5.0★ (3) | No | Yes | Sep 2026 | |
| 8 |  | Free | — | No | No | May 2026 |
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.
Generate various sound waves, including sine, square, sawtooth, and triangle, with adjustable frequencies from 1Hz to 22000Hz. Visually observe animated sound waves and control volume. Useful for testing hearing, speakers, instruments, and even cleaning water from speakers.
This free app measures sound levels and noise exposure using your smartphone. Developed by acoustics experts, it provides professional-grade metrics and guidance on hearing protection and noise prevention.
