Transform your device into a professional audio analysis tool with real-time FFT, SPL monitoring, and advanced visualization. Record, analyze, and export high-quality audio and video data for various acoustic applications.






249+ iOS apps curated and reviewed
If you already know Frequency Analyzer, this is the deeper bench. 249+ audio frequency analyzer free apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of November 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 4.5★ (187) | No | Yes | Nov 2026 | ||
| 2 | Free | 4.6★ (1.1K) | Yes | Yes | Nov 2026 | ||
| 3 | Free | 4.4★ (23) | No | Yes | Oct 2026 | ||
| 4 | Free | 4.9★ (20) | No | Yes | Oct 2026 | ||
| 5 | Free | 4.4★ (239) | No | Yes | Oct 2026 | ||
| 6 | Free | 4.5★ (3K) | No | Yes | Oct 2026 | ||
| 7 | Free | 4.5★ (21) | No | No | Nov 2026 | ||
| 8 | Free | — | No | Yes | Oct 2026 |






Transform your device into a professional audio analysis tool with real-time FFT, SPL monitoring, and advanced visualization. Record, analyze, and export high-quality audio and video data for various acoustic applications.






Analyze audio signals in real-time with waveform, amplitude spectrum, and spectrogram displays. Offers detailed customization for FFT size, window functions, and frequency weighting. Includes tools for generating basic waveforms and measurement signals.



This application transforms your device into a precise sound analysis tool. It offers real-time frequency detection, visualization, and data logging for musicians, engineers, and curious individuals. Gain clarity and accuracy in understanding the soundscape around you.