242+ iOS apps curated and reviewed
Every iPhone needs a few good tester frequency apps. We benchmark 242+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.0★ (10) | No | No | Sep 2026 | |
| 2 |  | Free | 4.7★ (340) | Yes | No | Oct 2026 | |
| 3 |  | Free | — | No | No | Oct 2026 | |
| 4 |  | Free | 4.1★ (7) | No | No | May 2026 | |
| 5 |  | Free | 5.0★ (15) | Yes | Yes | Oct 2026 | |
| 6 |  | $0.99 | — | No | No | Oct 2026 | |
| 7 |  | Free | 5.0★ (1) | No | Yes | Sep 2026 | |
| 8 |  | Free | — | No | Yes | Jun 2026 |
Test the low-frequency capabilities of your speakers with precise sound frequencies. Pinpoint the lowest bass your audio system can produce, from 15Hz to 100Hz, to ensure you're not missing out on deep sounds in your music.
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.
