Features & Capabilities

iM1 v1.2.0 brings the classic M1 experience to iPad and iPhone, faithfully reproducing the original PCM data and circuit-inspired sound. It includes 3,300 sounds across 34 cards, 18 expanded effects, and a KAOSS pad for expressive performance. The Smart Sound Browser makes it easy to find sounds, including the Best of M1 and M1EX libraries.

Designed for on-the-go production, iM1 works as a sound module with Gadget, Audiobus, and Inter-App Audio, and can connect to a USB MIDI keyboard as a standalone instrument. Sounds created in iM1 can be shared with the KORG Legacy Collection. It was selected as App Store Best of 2015 and has topped the Top Paid Music charts in many countries.

User Growth & Download Statistics

By:
KORG INC.
Rating:
4.70
(984)
1 new ratings
Version:
1.2.0 Last updated: 2024-03-31
Version code:
864517785
Creation date:
2015-05-25
Compatible devices:
Size:
199.92MB
Price:
29.99
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-10
Compare stats and ranking:

Ranking

Contact the developer

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Developed by:
KORG INC.
Apple Apps Store
https://apps.apple.com/us/app/korg-im1/id966030326
Website:
http://www.korg.com/products/software/korg_im1_for_ipad/

User Reviews

Users broadly praise iM1 for its authentic M1 sound and efficient AUv3-based operation on iPad/iPhone, with strong value. However, recurring complaints center on cross-DAW compatibility (GarageBand, Logic Pro, Beat Maker 3) and AUv3-specific limitations (not all patches, preset saving in AU hosts issues). Other common notes include a non-working sustain pedal, UI size constraints, and requests for usability tweaks (double-tap reset).
Pros
  • Authentic reproduction of the classic Korg M1 sounds.
  • AUv3 support and universal availability on iPad and iPhone.
  • Low CPU usage that allows multiple instances without heavy load.
  • Rich, versatile sound library with both vintage and modern tones.
  • Strong value for money and portability for mobile production.
Cons
  • Cross-DAW compatibility issues (GarageBand, Logic Pro, Beat Maker 3) and IAA deprecation.
  • AUv3 limitations (not all original patches exposed; chords/keys/KAO pad not in AUv3).
  • Preset saving in AU hosts (e.g., AUM) can fail or be inconsistent.
  • Sustain pedal does not function in some setups.
  • UI/UX constraints (small square interface) and requests for easier value resetting (e.g., double-tap to reset).
Recent reviews
Fix this bug please
by Me*****, 2025-12-02

Hola compre la app porque se q es muy buena Soy tecladista de música popular desde Santa Cruz - Bolivia Le doy uso extenso es más.. es mi único instrumento en la actualidad Pero ojalá tomen en cuenta estas sugerencias MAPEO MIDI TOTAL MEJORAR EL SUSTAIN DE LOS OSCILADORES AGREGAR UN 3er CANAL DE EFECTOS MEJORAR LA INTERACCION DE LAS ENVOLVENTES Si actualizan y generan cobro adicional pagaría sin pensarlo Gracias
by he*****, 2025-10-20

After a while of using it as an Audio Unit extension on GarageBand it suddenly becomes unavailable, doesn’t load or GarageBand can’t seem to find it. Although the app works by itself, it’s very frustrating since it can’t load on my GarageBand projects. The only solution is to delete GarageBand and reinstall it but it’s obviously not convenient.
by Pl*****, 2025-10-14
View all user reviews ›

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