iOS Musician Apps (31) Supported Technologies is Audio Unit (AU), Effect Type is Distortion, Drive etc.

Mrh159 Brown Sound Guitar Amplifier plugin modeled on a vintage Marshall Super Lead 1959* 100W which is arguably the most famous amp of all time.

The MRH810 Lead Series is a guitar amplifier plugin. The MRH810 Lead Series provides all the versatility of the 800 and more in plugin form.

This is a AUv3 compatible overdrive/distortion which can be used as plugin with your favourite DAW such as Cubasis, Meteor, Auria or GarageBand. It supports a modern graphical interface and presets with stereo meters for monitoring signal levels.

Resampler is a creativity inducing bitcrusher packed with audio algorithms stretched past their limits.

The Sound Master Custom Tube Guitar Amplifier plugin is born to reproduce in your virtual rig the classic American guitar amplifier sounds.

SoundSaw is a complex sound processing app with easy-to-use controls designed to distort the sound of musical instruments or voice, and give the sound the aesthetics and atmosphere of noise, lo-fi, chiptune and experimental music scene.

The Boss Led Diode Distortion is a recreation of an iconic late 80s British guitar effect pedal, the first “amp in a box” pedal that replicates the tone and distortion character of famous black and gold British guitar amps.

Warm Distortion is real time distortion audio effect.

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

FoldR is a Wave Folding distortion effect app that adds harmonics to the original signal by folding the waveform back on itself when it exceeds a clipping threshold.

The WoodLofier is both a standalone app and AUv3 plugin which combines 4 different sections to make your sound more lofi or to add some creative twist  : filtering (and Sample Rate reduction), a Tape wobble unit, Noise addition and Crushing (clipping, bit reduction and saturation).