Apps Like FFT for iPhone and iPad
Analyze audio and display frequency graphs
Analyzes audio using Fast Fourier Transform to display amplitude vs. frequency graphs. Displays detailed spectral analysis in octaves. Supports iOS microphone or external microphones for accurate measurements.
FFT screenshots
Ranked alternatives
Showing 161–180 of 1,000 ranked alternatives.



Shoom Synthesizer
Yuri Turov
Play, edit, and share sounds
Create and manipulate sound with three independent synthesizers. Adjust pitch from 8–20,000 Hz. Slide or snap notes to scales with customizable glide rates. Set and edit individual notes for precise musical control.

Audio Analyzer
DEXUS Pawel Krzywdzinski
Analyze signals in real time
Analyze signals with real-time spectrogram, spectrum, and oscilloscope visualizations. Identify frequencies and measure response of equipment. Detect phonetic elements in speech and visualize animal calls. Check singer’s formant for vocal analysis.


Engine RPM
Real-Time Specialties, inc.
Analyze sound to calculate RPM
Measure by analyzing sound input. Select cylinder count and type. Calculate RPM using signal processing. Display real-time RPM values. Save and share measurement data.

SmarterNoise Pro
Johan Rogard
Record sound levels and export data
Measure sound levels with A-, C-, or no weighting. Display frequency spectrum. Export measurement data. Use full screen audio mode. Perform accurate and fast recordings.

Stereo Width Control
Blue Mangoo Consulting Company Limited
Adjust per frequency band
Adjust for 4 adjustable frequency bands. bass focus in the center channel and maintain spacious mid-range imaging. Solo each band for individual auditioning.




Ghost Detector: Spirit Tracker
Digital Bananas, LLC
Detect paranormal activity with technology.
The app mimics technologies to detect paranormal activity including RADAR, EMF, Infrasound, EVP, and Ion detection. It identifies irregular energy, fluctuations, electron vibrations, low-frequency sounds, and ion charges.

Nu-Music Player
Loop-Sessions.LLC.
Create playlists and apply real-time effects
Create custom playlists from device songs. Apply real-time effects including speed change, pitch shift, 10-band EQ, reverb, and center cancel. Adjust settings via toolbar buttons for , tune, EQ, and reverb.



iFunctionGenerator
Black Cat Systems
Audio function generator for mobile devices.
The app transforms a mobile device into an audio function generator. It allows for multiple generators with independent control over frequency, wave type, volume, and phase for precise audio output.

RRS Ivoks
RRS, OOO
Play 5 minutes of music anytime
AUv3 is a virtual analog synthesizer with undo/redo, A/B comparison, and 2x/4x/8x upsampling. It includes macro controllers and a scalable GUI. Users can reload the demo version for repeated free play sessions.

MHD Flasher N54
MHD Tuning UG (haftungsbeschraenkt)
Read and clear engine DTC codes
Allows users to read and clear engine diagnostic trouble codes, view existing vehicle licenses, analyze past datalogs, and access the user guide. It serves as a transition tool to the unified "MHD " .

Tone Generator!
Peter Deelstra
Generate tones, adjust frequencies, play multiple sounds
Generate tones between 20 Hz and 15000 Hz with 0.1 Hz precision. Adjust frequencies and volumes in real time. Play up to 12 tones simultaneously with independent volume control. Supports sine, square, and triangle waveforms.

How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.