Apps like Grainstorm

Here are some great alternatives to Grainstorm by The Secret Laboratory :
vuKNOB
vuKNOB
★5.0
Spacecraft Granular Synth
Spacecraft Granular Synth
★4.7
G-Stomper Producer Demo
G-Stomper Producer Demo
★4.8
Mazetools Mutant
Mazetools Mutant
★3.9
Electrum Drum Machine/Sampler
Electrum Drum Machine/Sampler
★4.5
KueIt Mobile
KueIt Mobile
★4.3
Groovebox - Music & Beat Maker
Groovebox - Music & Beat Maker
★4.0
G-Stomper Producer
G-Stomper Producer
★4.7
Amp Rack Guitar Effects Pedal
Amp Rack Guitar Effects Pedal
★3.2
Koala Sampler
Koala Sampler
★4.6
FL STUDIO MOBILE
FL STUDIO MOBILE
★4.0
MIDI App ( trial version )
MIDI App ( trial version )
★3.6
Synth
Synth
★4.2
Hexen - Modular Synthesizer
Hexen - Modular Synthesizer
★4.3
Simple Sampler
Simple Sampler
★4.0
Podcast Maker: Home Studio App
Podcast Maker: Home Studio App
★4.1