iOS Musician Apps (70) Supported Technologies is Audio Unit (AU), Effect Type is Reverb, Delay, Echo

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

This is a AUv3 compatible digital delay which can be used as plugin with your favourite DAW such as Cubasis, Meteor, Auria or GarageBand.

This is an audio unit plugin that puts a small delay between the left and right channels.

STRATOSPHERE CLOUD REVERB is an audio unit plugin effect inspired by the Cloud Reverb patch in a very well-loved modern classic reverb pedal.

Kosmonaut is Multitap Delay with a twist. In addition to adding echoes to your audio, it packs a bunch of extra tools to put your music in space.

Tape style delay AUv3 effect plugin / app extension.

soda is a DJ application. It's customisable Interface let's you focus only on the features that are important to you.

The Analog Rack Delay plugin is the power of Nembrini Audio’s delay algorithms in a simple package! BPM Sync, stereo spread circuit and a very juicy sound!

Echo effect Audio Unit V3 inspired by the mayan pyramids acoustic echo. I come up with a complex phase modulated frequency of the echo so you can change it’s frequency signature. It is kind of changing the material of the reflective surface and I called it “Stone F”.

It's vintage and It's very warm. All the sounds come from impulse responses grappled on the web.

MoDelayrium is a Audio Units Plugin Suite and it is composed by 10 auv3: ChoriumUnus, DoppleriumUnus, ReverbiumUnus, TremuloriumUnus, Chorus-Flanger Module, Delay Modulator Module, Room Filter Module, Simple Delay Module, Space Module and Tremulo Module.

Ratshack Reverb is a detailed model of that classic of classics, the Realistic Electronic Reverb. Now, you can have the sound of everyone's first analog delay unit, without ever having to change batteries!

High quality real time reverb AudioUnit effect, for everything between small rooms, resonators, and infinitely large spaces.

Visual Reverb is a plate reverb with multi-band EQ and the ability to analyse audio in real time giving a spectrum representation of your signal flow.

This is a natural sounding reverb audio effect.

Resonator Audio Unit is an audio effect that creates natural sounding resonances in an acoustic body.

Alien Box is LFO operated modulation effect.

Play or save the files with added reverb. Use play through mode or Audiobus for realtime reverberation.

FabFilter Pro-R is an algorithmic reverb plug-in with natural sound and intuitive controls.

Convolution is a highly complex signal processing approach, that needs some certain computation power. The recorded impulse response of a real world environment is used to render a reverberation effect onto any audio material, so that it sounds like the source was played in that original room or at that location.