250+ iOS apps curated and reviewed
Looking for free hertz meter apps? 18 of our 250+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 3.3★ (6) | Yes | No | Oct 2026 | |
| 2 |  | Free | 4.7★ (1.2K) | Yes | No | Oct 2026 | |
| 3 |  | Free | 4.6★ (164K) | No | Yes | Nov 2026 | |
| 4 |  | Free | 4.5★ (3K) | No | Yes | Oct 2026 | |
| 5 |  | Free | 4.7★ (56K) | No | Yes | Nov 2026 | |
| 6 |  | Free | 4.5★ (187) | No | Yes | Nov 2026 | |
| 7 |  | Free | 5.0★ (2) | No | Yes | Oct 2026 | |
| 8 |  | Free | — | Yes | 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 tool transforms your device into a professional sound level meter, offering precise measurements of ambient noise. It features advanced calibration, frequency analysis, and data management for various applications, from personal curiosity to professional use.
