Tonaut is a synth, drum machine, sequencer and eight-track tape for iPhone and iPad, made to be played rather than programmed. 9 synth engines, over 500 sounds, 41 drum kits, a chord pad, 16 effects and an eight-lane sequencer. On iPhone, five housings with key LEDs. $19.99 - one-time purchase for iPhone and iPad. No subscription, no account. AUv3 is coming in 2.0, free.