Visualize sound waves in real-time by detecting and displaying their frequencies in Hertz. Experience an augmented reality view of the audio environment around you.



250+ iOS apps curated and reviewed
The best hz frequency detector apps on iPhone average 4.6★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 4.4★ (8) | No | No | Jul 2026 | ||
| 2 | Free | 4.7★ (54K) | No | Yes | Sep 2026 | ||
| 3 | Free | 5.0★ (1) | Yes | Yes | Sep 2026 | ||
| 4 | Free | 4.5★ (17) | No | Yes | Sep 2026 | ||
| 5 | Free | 3.3★ (6) | Yes | No | Aug 2026 | ||
| 6 | Free | 4.6★ (1K) | Yes | Yes | Sep 2026 | ||
| 7 | Free | 4.6★ (162K) | No | Yes | Sep 2026 | ||
| 8 | Free | 4.5★ (166) | No | Yes | Sep 2026 |



Visualize sound waves in real-time by detecting and displaying their frequencies in Hertz. Experience an augmented reality view of the audio environment around you.




Monitor your surroundings with this decibel meter app. It measures sound levels in real-time, providing clear visual analysis and advanced filtering options. Easily share your readings for documentation or further analysis.


Instantly discover the tuning frequency of music around you. This app uses song recognition and advanced analysis to reveal if a track is tuned to standard concert pitch or other frequencies, offering a new dimension to your listening experience.