250+ iOS apps curated and reviewed
Decibel X is the household name in redvox infrasound recorder, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.6★ (161K) | No | Yes | Aug 2026 |
| 2 |  | Free | 3.3★ (24) | No | No | Aug 2026 |
| 3 |  | Free | 4.6★ (26K) | Yes | No | Aug 2026 |
| 4 |  | $5.99 | 4.1★ (800) | No | Yes | Aug 2026 |
| 5 |  | Free | — | No | Yes | Jun 2026 |
| 6 |  | Free | — | Yes | Yes | Aug 2026 |
| 7 |  | Free | — | No | No | May 2026 |
| 8 |  | Free | — | No | No | Jun 2026 |
This app transforms your device into a professional sound level meter, precisely measuring ambient noise pressure. It offers advanced features like frequency analysis, historical data management, and dosimeter functions, making it useful for various applications and entertainment.
Visualize sound waves and analyze their frequency spectrum. This utility displays the waveform of various sounds, from your voice to musical instruments, and reveals their overtone structure. Explore the sonic characteristics of your environment with this straightforward tool.
Easily record high-quality audio, including voice, music, lectures, and meetings. Save recordings to your device's internal storage for playback anytime. Share your audio files through various social networking channels.
Record high-quality audio with unlimited time and background recording capabilities. This app offers advanced playback controls, audio trimming, and noise reduction features for clear voice memos. Easily share recordings via email, iCloud, or Dropbox.
Transform your iOS device into a professional noise measurement tool. Capture precise sound with stereo recording, calibration, and advanced analysis features. Ideal for accurate audio data collection and evaluation.
