Apps Like AddStation for iPhone and iPad
Create sound with additive synthesis
Create and manipulate sounds using additive synthesis. Adjust sine wave parameters to shape timbres. Layer multiple partials to build complex tones. Save and export custom sound designs. Import and export audio files for further processing.
AddStation screenshots
Ranked alternatives
Showing 401–420 of 1,000 ranked alternatives.


Tuning Fork Pro
Pedro Daniel Macalupu Cumpen
Tune instruments with precise waveforms
Tune musical instruments by ear with note generation from A1 to C7 in four waveforms. Adjust A4 calibration between 415Hz and 466Hz. Choose sine, square, triangle, or sawtooth waveforms. Set output volume. Load tones instantly with precise emission.



FAC Phazer
Frederic Corvest
Stream audio effects and modulate parameters
Create and customize audio effects with adjustable LFO and diverse waveforms. Sync LFO to host tempo and apply external modulation. View modulation and output levels via Butterfly Meter. Adjust phase modulation distance for stereo effects.


iPhilicorda - Vintage Organ
Fingerlab SARL
Play vintage organ sounds and create music
Emulate a vintage 1960s Philips Philicorda organ with 3 octave registers and 5 Vox sounds. Includes spring reverb and vibrato effects. Allows users to create and customize organ tones for music production.




DigiTech Stomp Shop
Harman Professional, Inc.
Connect to all available e-pedals.
The app connects to DigiTech e-pedals for the iStomp stompbox. Users can change the iStomp's sound by downloading different e-pedals from the Stomp Shop.

Music Theory Matrix
Hamoon Nozari
Explore musical patterns with algorithms
Explore through mathematical concepts. Calculate note frequencies using the 12th root of 2. Visualize octaves and intervals with ratio comparisons. Adjust semitones to see frequency changes. Link musical notes to their corresponding frequencies.

Talking Tuner
Ronald Nicholson
Sound-activated chromatic musical instrument tuner.
The app is a sound-activated, chromatic tuner for musical instruments. It uses speech synthesis to inform users if their instrument is in tune, without requiring visual or physical interaction with the display.

RX950 Classic AD/DA Converter
Demange Mathieu
Stream audio with 12-bit resolution
Adjust audio with 12-bit resolution and customizable bandwidth for varying sampling frequencies. Apply a 6th-order low-pass Butterworth filter. Choose stereo or mono operation. Support AUv3 and Inter- Audio for integration.



SeekBeats Drum Machine Synth
Rodrigo Yanez
Synthesized electronic drum loops that sound alive.
The app creates synthesized electronic drum loops with eight voices and a step sequencer. It offers a randomizer for instant sound mutation and snapshots for sound exploration.



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