Turntable.fm - Turntable.fm is a social media website developed by Billy Chasen and Seth Goldstein that allows the audience to stream their own music.
Thunkable - Powerful but easy to use, drag-and-drop mobile app builder.
Kompoz - Kompoz is an online platform for crowd-sourcing music creation, making you record, create or publish music with the guidelines of a world-class musical expert.
MIT App Inventor - App Inventor is a cloud-based tool, which means you can create apps for phones or tablets right in your web browser.
Bandlab - Capture, nurture, and collaborate on song ideas in the cloud
Bubble.io - Building tech is slow and expensive. Bubble is the most powerful no-code platform for creating digital products.