iSyn has been out for a little while now but still holds it’s own. the synths sound great. for more details check out the official site www.isynapp.com
audiomidi and virsyn proudly present iSyn, a virtual music studio for Apple iPhone and iPod Touch that puts an unbelievable number of features including two studio-quality, fully-programmable monophonic virtual analog synthesizers and a drum machine in the palm of your hand! Play iSyn live with the onscreen keyboard or eight drum pads for fun live jam sessions or let iSyn do the playing for you with its grid sequencer for pattern-based music creation. iSyn can even play a beat and synth track while you jam over sequence tracks for a one-man iPhone band!