243+ iOS apps curated and reviewed
Every iPhone needs a few good tester frequency apps. We benchmark 243+ 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 | Sep 2026 | |
| 3 |  | Free | 4.1★ (7) | No | No | May 2026 | |
| 4 |  | Free | — | No | No | Jul 2026 | |
| 5 |  | Free | 4.5★ (8) | No | Yes | Sep 2026 | |
| 6 |  | Free | 5.0★ (16) | Yes | Yes | Jul 2026 | |
| 7 |  | Free | 3.9★ (225) | Yes | Yes | Sep 2026 | |
| 8 |  | Free | — | Yes | Yes | Sep 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.
Generate custom healing tones and programmable sequences using your device's speaker. This app is designed to work with forthcoming energetic healing devices, converting frequencies into pulsed energy waves.
