MintFFT vs Audio RTA Analyzer

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.

Audio RTA Analyzer turns your phone into a fast audio test bench for real-time analysis and practical sound checks. Use your device's microphone to view the live spectrum, track frequencies, monitor dB levels and spot peaks that can help with speakers, PA systems, home studios, instruments and car audio tuning. Main tools: - Real-time RTA/FFT analyzer - dB meter for quick sound checks - Hz frequency generator - Test tones, noise and sweeps - Subwoofer test tools - Stereo channel tests for left, right and center - Clear visuals for stage, studio, installation and workshop use Built for musicians, sound techs, audio engineers, installers and car audio users who need quick insight without carrying extra gear. Note: measurements depend on your device microphone and hardware. For certified calibration, use dedicated professional instruments.