iOS Musician Apps (48) Instrument Sounds is Keyboards, Free

Dandy is a sampler/synthesizer for iPhone inspired by Dandy Desmonds composition “Magnetic Loops for 15 Tape Decks” from 1938, which is one of the earliest known works of electroacoustic music.

Chiptunes Pro lets you make retro music the way it should be made - with chips. Build your circuit to lay down drum beats, basslines, and tunes.  No knowledge of electronics needed.

A strange noise-making device.

Electric piano sampler.

ToyTone is simple synthesizer. Select waveform, and move the slider. Tap the pad at bottom, you can play.

Dedicated monophonic synth bass synthesizer.

bent.fm is a full FM model of a circuit-bent synthesizer.

Beatonal is an accessible music making app, enabling you to easily create and share your musical ideas using the built-in synthesizers and drum machine.

LCW-2 mono is a little complicated synthesizer based on ToyTone and implements several experimental functions.

CHAiOS SYNTH 2 is a synthesizer/melody generator that creates unique melodies with just one tap.

Spectrum is a collection of Audio Unit ports of popular eurorack synthesizer modules.

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.

Modulin is a customizable synthesizer. It allows for unique personal expression while providing a wide spectrum of visual feedback.

Triqtraq LE is a free limited edition of the critically acclaimed music app Triqtraq - Jam Sequencer.

Make music in seconds. Share, remix and collaborate with music makers all over the world.

Nanologue boasts a wide scope of inspiring sounds and professional sound effects, sporting a straightforward multi-touch interface and a great-sounding monophonic synthesizer.

Grand Piano auv3 brings you the sound of the classic instrument to your iPad and iPhone.

4Waves Synth AUv3 is an easy to use synthesizer with a powerful sound.

Accelerometer Synthesizer and Bluetooth MIDI Controller.

Syntorial is a synthesizer training app, that will teach you how to program synth patches by ear.