FL Studio Mobile - Create & save multi-track music projects on a smartphone
UI Movement - The best UI design inspiration, daily
Audulus - A universe of sound at your fingertips - Audulus is a modular music processing app
UI Garage - Specific mobile and web design patterns for your inspiration
G-Stomper Studio - G-Stomper Studio is a feature-packed, mobile music production tool.
UpLabs - The best material design, iOS & web resources, every day