iOS Musician Apps (567) Supported Technologies is Audio Unit (AU)

Fractal Bits is a drum synth with over four billion unique sounds created by fractal algorithms.

yaleD is a dedicated reverse delay audio effect, with full support as an Audio Unit (AUv3) plugin extension

Mozaic runs inside your favorite AU MIDI host, and gives you practical building blocks such as LFOs, pre-fab GUI layouts, musical scales, AUv3 support (with AU Parameters, transport events, tempo syncing, etc.), random generators and a super-simple yet powerful script language.

This is a natural sounding reverb audio effect.

So what is a midi echo? It is similar to the audio echo effect where copies of the original audio are repeated at regular time intervals but with some form of change (e.g. quieter). But unlike audio, midi is digital in nature (low resolution 8 bit mostly) and focused around the midi note on & off message used to control synths etc.

RX950 Classic AD/DA Converter is a Classic AD/DA Converter emulator.

Remake is a multi-band effect, includes gain, reverb.

This synthesizer offers a brand new way of finding the optimal sound.

Remake is a multi-band effect. The input signal is split into 3 parts. Then resonances are added to the lows (under 100Hz) and at the same time two harmonic voices are added to the mid frequencies only.

Stereo Phaser is a phaser effect that can run in stereo mode.

Classic vibrato and chorus effect.

Warm Distortion is real time distortion audio effect.

PlaySections is an audio/video player that allows you to freely set marks and play back specific sections of your audio/video files.

Harmonizer is real time audio pitch shifter effect that can mix harmonies into the original signal or run as realtime pitch shifter.

Warm Distortion is Audio Unit effect app that creates nice distortion sound.

Musk MIDI Keyboard is an expandable MIDI keyboard.

Studio quality reverb for AUv3 / Audiobus / Inter-app audio and songs from your iTunes music library.

Steel Guitar PRO is a guitar processor that combines cutting-edge realtime audio generation with control interface. It provides guitar models, built-in amps & FX processing, MIDI control, AUv3, and good customizability.

ToneStack PRO is a guitar effects processor.

Kauldron is a synth with new modeling technology, combined with features help you create aggressive synth sounds full of rich analog textures with the fewest knob tweaks.