The primary Audiotool is a professional, online DAW that runs in your browser.
There is a popular Android app explicitly named by Julian Bunn, available on the Google Play Store . It is an acoustic analyzer rather than a music composition tool. Audiotool Android
: Includes a spectrum analyzer, sound pressure level (SPL) meter, and signal generator for white/pink noise and various waves. The primary Audiotool is a professional, online DAW