What are some alternatives?
When comparing NanoStudio and Sampulator, you can also consider the following products
G-Stomper Studio - G-Stomper Studio is a feature-packed, mobile music production tool.
Splice Beat Maker - Make and share beats in your browser
KORG Gadget - KORG Gadget - From iOS to Mac. Music production software to help your musical imagination become reality.
BlokDust - Join blocks together to build sounds with this web-based music making app.
Music Maker Studio - Android app to make music and write songs with a multi track Midi sequencer.
Ramsophone - A generative art/music machine. (Be sure to refresh!)