iOS Musician Apps (503) Supported Technologies is Inter-App Audio (IAA)

GarageBand is a DAW by Apple.

iFretless Brass enables guitar and string instrument players to play expressive music with a variety of instruments.

midiSTEPs is a powerful and fun MIDI step sequencer app that sends MIDI note and CC messages to other music apps and external synthesizers.

Annoydio has a grid of pads which you can assign, manipulate, and play sounds.

Oriental Strings is a professional sound module app for oriental keyboard players and for musicians who simply want to resemble the typical sound of the Middle East in their songs.

This is a Lite version of EGDR909 - 909 Drum Machine, but all its functionalities can be unlocked as in-app purchase.

Turn your iPad into an instrument of the violin family and play just like on a real instrument.

Electro-Harmonix, a pioneer since 1968 in the field of sound effects pedals for musicians, has produced an app which is a faithful digital re-creation of their circa 1980 analog cult-classic, The MINI-SYNTHESIZER.

Join Songtree, the music recording app & social community for music collaboration. Record your music with a super easy 2 track recorder. Add effects such as Reverb, Chorus, Echo and more.

AutoArp turns your iPhone (or iPod Touch) into a musical instrument that is halfway between a traditional auto-harp zither and an arpeggiated analogue-style synth.

This app contains the following instruments: Trumpet, Trombone and Saxophone sampled in four different brass sections.

GliderVerb is a “Reverberator with Glissandos” simulating a room gradually changing its shape.

This is the app for guitar, bass, and strings players who need realistic woodwind instrument sounds for recording or live performance.

SynthMaster Player for iPad is the MOBILE PLAYER VERSION of the award winning SynthMaster software synthesizer.

Play your favorite songs in their original sound using your iPhone or iPad. It's a whole new experience in learning songs.

Synthecaster fuses elements from guitars and keyboards into a full range polyphonic instrument that is intuitive, accommodates a wide variety of playing styles, and generates an even wider variety of sounds.

n-Track Studio 8 turns your iPhone, iPad or iPod touch into a complete recording studio.

Echo Guitar™ Lite is a tool for composing guitar songs.