Been using MuseLead Synthesizer for a couple months now. It’s basically a music creation app that turns your phone into a real instrument. Pretty solid if you’re into that kind of thing.
Here’s what you do: there’s an expressive multi-touch keyboard where you can play melodies. It’s got scales and layouts to help you explore music theory, plus a handy Circle of Fifths feature to practice chords and progressions. And it works as a MIDI controller too – you can use it to control other music apps on your phone.
Look, if you’re a musician, producer, or just someone who likes to mess around with synths, you’ll probably like this. It’s not perfect – the learning curve is a bit steep at first – but overall it does the job. Worth checking out.