250+ iOS apps curated and reviewed
The best frequency analyzer hz apps on iPhone average 4.4★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 3.3★ (6) | Yes | No | Aug 2026 | |
| 2 |  | Free was $10.99 | 4.6★ (1K) | Yes | Yes | Sep 2026 | |
| 3 |  | Free | — | No | No | Aug 2026 | |
| 4 |  | Free | 4.5★ (3K) | No | Yes | Aug 2026 | |
| 5 |  | Free | 4.2★ (195) | Yes | Yes | Sep 2026 | |
| 6 |  | Free | 4.5★ (4.8K) | Yes | Yes | Sep 2026 | |
| 7 |  | Free | 4.5★ (163) | No | Yes | Sep 2026 | |
| 8 |  | Free | 4.3★ (12) | No | Yes | Sep 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.
This application analyzes audio input from your microphone, displaying both the waveform and amplitude spectrum in real-time. It offers extensive customization for display, calculation, and signal generation.
