What are some alternatives?
When comparing Splice Beat Maker and NanoStudio, you can also consider the following products
Sampulator - Make (and record) beats on your keyboard
G-Stomper Studio - G-Stomper Studio is a feature-packed, mobile music production tool.
Ramsophone - A generative art/music machine. (Be sure to refresh!)
Stagelight - The Easy Way to Create Music.
BlokDust - Join blocks together to build sounds with this web-based music making app.
KORG Gadget - KORG Gadget - From iOS to Mac. Music production software to help your musical imagination become reality.