249+ iOS apps curated and reviewed
The best frequency counter apps on iPhone average 4.5★ across 249+ 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 | 3.3★ (6) | Yes | No | Aug 2026 | |
| 2 |  | Free | 4.8★ (14K) | Yes | Yes | Oct 2026 | |
| 3 |  | Free | — | No | No | Jul 2026 | |
| 4 |  | Free | — | No | No | Oct 2026 | |
| 5 |  | Free | 4.7★ (5.4K) | Yes | Yes | Oct 2026 | |
| 6 |  | Free | 4.6★ (1K) | Yes | Yes | Oct 2026 | |
| 7 |  | Free | 4.7★ (340) | Yes | No | Oct 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.
This digital tally counter app allows you to create and manage an unlimited number of counters. Customize each counter with unique names and colors, and adjust the increment/decrement step size. It offers optional sound feedback and detailed logging for each count.
