KORG iM1 is described as 'Since it went on sale in 1988 the legendary M1 music workstation rapidly achieved record-breaking sales, becoming a mainstay of the music scene from the late 1980s and beyond' and is an app in the Audio & Music category. There are eight alternatives to KORG iM1 for a variety of platforms, including iPad, iPhone, Mac, AudioBus and Windows. The best alternative is Moog Model 15. It's not free, so if you're looking for a free alternative, you could try KORG Gadget. Other great apps like KORG iM1 are DRC - Polyphonic Synthesizer (Paid), Poison-202 (Paid), KORG iWAVESTATION (Paid) and KORG iMS-20 (Paid).
DRC is a virtual analog synthesizer replicating the sound of hardware synths and featuring a minimal but powerful parameter set and cloud syncing for presets to make it easy to port patches to other devices.
Animoog captures the vast sonic vocabulary of Moog synthesizers and applies it to the modern touch surface paradigm, enabling you to quickly sculpt incredibly fluid and dynamic sounds that live, breathe, and evolve as you play them.