# MintFFT — Audio spectrum analyzer > Real-time audio spectrum analyzer for iPhone and iPad with on-device processing. (iPhone/iPad app by Takahiro Kamatani.) - Source: https://appshunter.io/ios/app/mintfft/id6755054786 (this page in markdown: same URL + `.md`) - Developer: [Takahiro Kamatani](https://appshunter.io/developer/1851577637) - Category: Music, Utilities - Price: Free - Rating: 5.00/5 from 4 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 18.4 · 1 MB - Languages: American English, Arabic, Danish, Dutch, Finnish, French (France), German (Germany), Hindi, Indonesian, Italian and 12 more - Released: 2025-11-10 - Data updated: 2026-08-24 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/mintfft/id6755054786/reviews.md ## What is MintFFT? MintFFT is a simple and precise audio spectrum analyzer for iPhone and iPad. Designed with a focus on clarity and calm, it turns your sound into smooth, real-time visuals — without ads, clutter, or unnecessary controls. Features • Real-time FFT spectrum with dB scale • Peak hold and multiple window functions (Hann, Hamming, Blackman, Rectangle) • Pinch to zoom and swipe to pan across frequency ranges • Supports internal and external microphones (USB-C / Lightning) • Works in portrait, landscape, and Split View on iPad • Runs entirely on-device — no recording, tracking, or data collection Privacy First MintFFT processes all audio locally for visualization only. No data ever leaves your device. Simple. Clear. Reliable. Just open MintFFT and watch your sound. ## Key features - Real-time FFT spectrum with dB scale - Peak hold and multiple window functions - Pinch to zoom and swipe to pan - Supports internal and external microphones - Works in portrait, landscape, and Split View - On-device processing, no data collection ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/mintfft/id6755054786/reviews.md ### 5/5 — Great app *2026-06-08* Excellent design, and no spam included ### 5/5 — Good app *2026-05-04* Very good application for reading audio frequencies ## Frequently asked questions about MintFFT ### What is MintFFT? MintFFT is a free audio spectrum analyzer for iPhone and iPad. It displays real-time sound visualizations with a focus on clarity and privacy, processing all audio locally on your device. ### Does MintFFT have ads? No, MintFFT is completely ad-free. The app is designed to provide a clean and uninterrupted user experience without any advertisements. ### What devices does MintFFT support? MintFFT is available for iPhone and iPad. It supports both portrait and landscape orientations, and works in Split View on iPad. ### Can MintFFT record audio? No, MintFFT does not record or collect any audio data. All audio processing is done entirely on-device for visualization purposes only, ensuring user privacy. ### What microphone inputs does MintFFT support? MintFFT supports both the internal microphones of your iPhone and iPad, as well as external microphones connected via USB-C or Lightning. ### How often is MintFFT updated? The latest version of MintFFT is 1.1, which was last updated on November 17, 2025. Updates focus on reliability and user experience improvements. ### What is the age rating for MintFFT? MintFFT has an age rating of 4+. This indicates it is suitable for users of all ages and does not contain any mature content. ### How does MintFFT handle different window functions? MintFFT offers multiple window functions, including Hann, Hamming, Blackman, and Rectangle. These functions allow for different spectral analysis characteristics and can be selected by the user. ## Version history (last 2 releases) ### 1.1 — 2025-11-17 Version 1.1 introduces new localizations for Danish, Hindi, Indonesian, Italian, Polish, Portuguese, Spanish, Thai, Traditional Chinese, Turkish, and Vietnamese. ### 1.0 — 2025-11-10 No release notes. ## Apps similar to MintFFT | App | Rating | Price | Category | | --- | --- | --- | --- | | [SGA Phoenix LT](https://appshunter.io/ios/app/sga-phoenix-lt/id6755629174) | — | Free | Music | | [JAX DYNAMICS : Limiter](https://appshunter.io/ios/app/jax-dynamics-limiter/id1615963876) | 3.0 (2) | $4.99 | Music | | [JAX ESSENTIALS : Flanger](https://appshunter.io/ios/app/jax-essentials-flanger/id1636821080) | 3.5 (2) | $4.99 | Music | | [GORILLA SYNTH](https://appshunter.io/ios/app/gorilla-synth/id6756503672) | 4.9 (21) | $4.99 | Music | | [Spectrum Lab - Audio Analyzer](https://appshunter.io/ios/app/spectrum-lab-audio-analyzer/id6760655721) | — | Free | Music | ## Related topics [led audio spectrum visualizer](https://appshunter.io/ios/topics/led-audio-spectrum-visualizer) · [wavelet voice sonogram](https://appshunter.io/ios/topics/wavelet-voice-sonogram) · [fft analyzer](https://appshunter.io/ios/topics/fft-analyzer) · [spectrum analyzer](https://appshunter.io/ios/topics/spectrum-analyzer) · [fftwave](https://appshunter.io/ios/topics/fftwave) · [audio spectrum analyzer free](https://appshunter.io/ios/topics/audio-spectrum-analyzer-free) · [reflections between the lines](https://appshunter.io/ios/topics/reflections-between-the-lines) · [iona statiq](https://appshunter.io/ios/topics/iona-statiq) · [band analyzer for logic pro](https://appshunter.io/ios/topics/band-analyzer-for-logic-pro) · [fft](https://appshunter.io/ios/topics/fft) · [audio spectrum analyzer pro](https://appshunter.io/ios/topics/audio-spectrum-analyzer-pro) · [fft spectrum audio analyzer](https://appshunter.io/ios/topics/fft-spectrum-audio-analyzer) · [rabbit latency](https://appshunter.io/ios/topics/rabbit-latency) · [mastering spectroscopy](https://appshunter.io/ios/topics/mastering-spectroscopy) · [acousticapp](https://appshunter.io/ios/topics/acousticapp) · [hill pro audio act](https://appshunter.io/ios/topics/hill-pro-audio-act) · [num 2048 6x6](https://appshunter.io/ios/topics/num-2048-6x6) · [fft audio](https://appshunter.io/ios/topics/fft-audio) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*