# KORG iM1 — user reviews > 487 indexed App Store user reviews of KORG iM1 by KORG INC., rated 4.70/5 from 1,007 ratings. - Source: https://appshunter.io/ios/app/korg-im1/id966030326/reviews - App overview in markdown: https://appshunter.io/ios/app/korg-im1/id966030326.md - Rating breakdown: 5★ 877 · 4★ 68 · 3★ 23 · 2★ 9 · 1★ 30 ## What do users think of KORG iM1? Overall sentiment: positive **Pros** - 👍 Authentic M1 sound reproduction - 💰 Great value for money - 🎹 Faithful recreation of the original hardware - 🎨 Powerful sound customization options - 🔗 Works well with MIDI controllers - 🎧 High-quality preset sounds - 🏆 Essential for fans of the original M1 **Cons** - 🐛 Occasional crashes or stability issues - 🔇 Low output volume compared to other apps - 🤔 Confusing UI for patch editing and saving - 🔴 Missing AUv3 support for integration with DAWs **Commonly reported bugs** - Disappearing or missing purchased sound cards - Bluetooth MIDI connectivity issues - Compatibility problems with certain iOS versions or devices **Most requested features** - Add AUv3 support for better DAW integration - Improve preset management and saving capabilities - Increase master volume control options - Expand sound library with more cards/expansions ## Newest reviews (17 of 487) ### 3/5 — I want the Triton *2026-07-30, version 1.2.0* I love the m1 and its ability to layer and multi midi track. I need some new sounds and would love to have the full version of the triton too. ### 4/5 — Time for AUV3 update *2025-12-01, version 1.0.7* Thanks for bringing back this legend. Now make the Legendary IMS 20 into an AUV3 ### 3/5 — MAPEO MIDI ABIERTO PORFAVOR *2025-10-20, version 1.2.0* 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 ### 5/5 — Incredible Quality *2025-10-17, version 1.2.0* I’ve deliberately ignored this due to there being no legitimate reason for the non AU compatibility - and I’m so glad I held off! I had the pleasure of owning several of these incredible keyboards in the mid to late 90’s and on, and other than the Wavestation, the 01/RW and Trinity Moss there have been very few to inspire so much from the presets alone. The M1 took several months to really get to grips with, it’s sound, the sequencer, the effects - everything about it was mind-blowing and I loved it. The feel of it, the action, everything - utterly jaw dropping. Well since this went AUv3 and dropped in price it was a no-brainer, and I’ve not had so much fun with a soft-synth since the Legacy Collection was first released. The software behind this though, including all the cards I could never afford has taken me right back - I’ve sat for hours being inspired again purely from the presets alone - I know there’s no sequencer and it could probably benefit from it, but aside from that, the faithful reproduction compared to the hardware version is like no other synth available - this is a must for anyone who’s owned the M1 and those that haven’t, because it really is the most incredible piece of musical electronics engineering bar none! The Triton LE was more inspiring than the Triton Studio, the Extreme was awesome, the Trinity Moss was a dream, and the Korg Kronos is unbelievable - but this is the Queen of them all, and to be without it now I have it again is unimaginable - the depth of programmability is phenomenal, it truly is a beautifully inspiring piece of software and I couldn’t rate it highly enough. Get it, get the cards, and enjoy, because I guarantee that no other softsynth will ever be as inspirational as this is - on almost every level it’s identical to the original in terms of sound, even better in some cases, less so in others - but nothing else touches it! I love it, so thank you Korg for making an old-timer extremely happy and blown away! It’s incredible. ### 3/5 — Poorly supported with GarageBand *2025-10-14, version 1.2.0* 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. ### 5/5 — The great M1 without the weight! *2025-10-05, version 1.2.0* You know, back in my day we fell in love with the original Korg M1 — that workhorse keyboard that showed up in hit after hit: the organ riff in Robin S — “Show Me Love” (that I17 Organ2 patch) , the ubiquitous “piano-16’” lines in house tracks, Rhythm Is a Dancer by Snap! , and the lush pads and strings that haunted ballads and soundtracks alike. The original M1 defined a generation of sound.  Now, iM1 brings that legacy into your iPad or iOS device, polished and empowered. This isn’t a mere emulator — it’s a revival, a reawakening. The sonic authenticity is stunning: the same shimmer, the same metallic bite in the keys, the same depth in the pads — only now with more modern flexibility, more modulation, more routing, more control. It feels like I’ve taken that vintage M1 I once gigged with and given it a new heart, new lungs, but kept its soul intact. If you loved the sound of the original M1 — or if you’re young and chasing that classic 80’s / early 90’s vibe — iM1 feels like destiny. It’s respectful of its history, yet arms you with modern tools. It brings the best of then and now into your hands. I say this with the authority of someone who’s sat behind analog boards, multi-trackers, late nights and early mornings: iM1 is a triumph. Now, let’s go lay down a piano line worthy of those old nights — you with me? ### 5/5 — Outstanding *2025-09-30, version 1.2.0* I just linked this through my iPad and iConnectivity Mio to my Korg Prophecy synth through MIDI - now I have a Korg M1 too without having to make room in my house for one !! ### 5/5 — No screen lock please! *2025-09-03, version 1.2.0* The app is really beautiful. True sound of good old M1! Dear devs, could you please disable screen lock while app is running? It would be much more convenient playing external MIDI-keyboard connected to iPhone. Please please please!🙏 ### 5/5 — Add a Reset Value Option *2025-09-01, version 1.2.0* iM1 is one of the best AUV3 plugins available. It’s super easy on the system resources and having multiple instances in your project is a breeze. I love it except sometimes its square size makes it hard to fit in spaces on a rectangular screen. I work around that though and won’t rate it less. One important change should me made. Please add double tap to reset values to zero on knobs and sliders. Currently your apps have no way to do this and it becomes time consuming to reset values. Thank you! ### 5/5 — Petit bug sur l’affichage du haut haut *2025-08-04, version 1.2.0* Petit bug quand on choisit un patch le nom Ne se met pas à jour en haut sur l’afficheur Si bien, que la conséquence est que lorsque l’on met sur une carte personnalisée, comme la libraire 1 il faille changer le nom à la main Alors qu’il suffit de cliquer deux fois dessus auparavant pour que le nom se mette à jour, et ainsi pouvoir faire la manipulation, sans réécrire le nom Pour résumer, il suffit lorsque l’on choisit un patch de cliquer deux fois dessus, au lieu d’une fois pour savoir où on en est et que l’afficheur du haut soit à jour ### 2/5 — No funciona el pítcher bend *2025-07-24, version 1.2.0* No funciona el pítch bend lo ocupo con mi iPhone y si funciona en este iPad no funciona después de su ultima actualización ### 5/5 — 神ソフト *2025-07-18, version 1.2.0* Windows版にもカオシレーターモードをつけて欲しい。互換てそういう事ですよね？ Prophecyとtrironもiphoneで使いたいです。 ### 5/5 — Muchos sonidos *2025-07-06, version 1.2.0* Variedad, edición avanzada, efectos y todo tipo de sonidos en presets ya combinados y combinables típicos de una Wokstation de altísimo nivel que aunque de otra época también tiene muchos sonidos inmortales, desde cuerdas a viento, órganos y eléctricos, bateristas y percusión, sonidos sintetizados y sampleados, pasando por atmósferas y efectos especiales. El más compatible y completo que existe que puede funcionar en cualquier iPhone antiguo sin despeinarse, ni siquiera ocupa espacio, y lo mismo te sirve para tocar en directo profesionalmente como en estudio, e incluso grabar maquetas. ### 3/5 — Would give it a 5. *2025-06-07, version 1.2.0* The CHORDS,KEYS & KAO PAD are not in the Auv3. ### 5/5 — 100/5 stars *2025-05-27, version 1.2.0* absolutely essential ### 5/5 — Excellent for vintage synth sounds *2025-05-25, version 1.2.0* Love this app for the sounds of that era. Perfect for dumgeon synth. I had trouble with Garageband loosing the connection with iM1 but KORG customer service was fast to respond telling me to just reinstall GB. Fixed ### 5/5 — Estupenda app *2025-05-19, version 1.2.0* Me gusto mucho que gran calidad de sonido, Me gustaria los sonidos del Trinity, por cierto, tienen sonido del d50, el fantasy, me gustó ## Most critical reviews (10 lowest-rated) ### 1/5 — Fantastic sounds but… *2025-06-30, version 1.2.0* The interface is really bad. Filter and amp envelopers are difficult to use. I requested a refund and it was refused. Be careful do not buy even to try it! @Korg happy to change the review when you review the interface. PS: support ticket was already created as 20622. Waiting for a feedback ### 1/5 — いくら音が良くても。 *2025-06-14, version 1.2.0* PC版を愛用しています。基本的な操作感はiPadでも同じですが、コンビネーションモード等に設定されている音色を白紙にすることが出来ません。勿論音色を変える事はできますが、おすすめとして既に設定されているChoirやStringsなどのパラメータ(パン振りやスプリット、ボリュームレベルなど)は全て残るので、一つずつ手動で戻さなければなりません。PC版ではクリア機能が実装されており、白紙から作り上げる事が出来ます。いくら音が良い、懐かしいなどと言ってもこんな基本的な操作すら出来ないUIではまず使う気にすらなれません。そもそもおすすめのテンプレート自体不要。どうせ皆使っていないでしょう。また、これはPC版も同様ですが、何故キーワード(名前)で音色を検索できないのか疑問です。人気順なんてどうでもいいです。欲しいと思った音を何十分も掛けて探すのは骨が折れます。実機よりかはマシ、を言い出したら終わりですけどね。世のレビューもほとんどは音色を褒めているだけです。 ### 1/5 — Good but bad *2025-05-11, version 1.2.0* Works nice in gadget. As an auv3 it os a terrible disappooinmem ### 1/5 — Not a good app *2025-03-19, version 1.2.0* A lat of latency ### 1/5 — 🚨 Bug track et toujours pas de AUV3 🚨 Bug track And still no AUV3 *2025-02-23, version 1.2.0* Au chargement sur la piste, le synthé joue les notes la piste la dernière piste enregistrée et fait crasher le DAW BeatMaker3 !!!! Et toujours pas de Auv3 pas cette application qui est l’une des 1er sur IOS mais aucune évolution 🤦‍♂️👎👎👎👎👎 When loading on the track, the synth plays the notes the track the last recorded track and crashes the DAW BeatMaker3!!!! And still no Auv3 not this application which is one of the first on IOS but no evolution 🤦‍♂️👎👎👎👎👎 ### 1/5 — Pedal *2024-09-25, version 1.2.0* El pedal de sustain no funciona ### 1/5 — Impossible to operate with so many bugs *2024-09-18, version 1.2.0* I cannot change timbres in the MIDI controller buttons, and I cannot sustain the notes pressing The sustain pedal. Please help me, because I cannot use It for live performances without solve these awfull bugs. Thanks. ### 1/5 — Pedal de sustentação não funciona no App *2024-06-02, version 1.2.0* Já tentei vários e não consegui fazer funcionar. ### 1/5 — Non funziona con Camelot!! *2024-02-01, version 1.0.10* Sono inferocito! Ho comprato l’app dopo aver guardato mille recensioni e video dove non si evince questo enorme difetto! Non è compatibile con il resto delle applicazioni VST3 e diventa inutilizzabile nei programmi di gestione audio. Voglio indietro i soldi! ### 1/5 — Useless without AUv3 support *2023-06-02, version 1.0.10* Now that Logic Pro is out for iPad and IAA has been deprecated for years, these Korg apps are pointless. Korg literally has the code in Apple Silicon MacOS versions since they support Audio Units. Pure laziness or lack of priority. ## Most praised reviews (10 highest-rated) ### 5/5 — Stable and great sound *2026-08-28, version 1.2.0* This has been on my wish list for a while. Bought it on offer and dabbled. Then carpal tunnel issues meant I couldn’t play a gig on bass so thought I wonder if this is as good as the m1 was back in the day when going through a PA. And more importantly could it replace a bass guitar on a gig. Well let me tell you, that experiment has lead to 3 solid months of gigging this. It has the same old sounds but never lets me down. Is super easy to set up custom sounds. The basses are fantastic and what’s not to love about he piano and brass sounds. I am really pleased I bought this and all the expansions. I now run this in a midi rig layering M1 sounds with my other synths e.g. my Jupiter 8 etc. and it’s just amazing. ### 5/5 — Siiiick *2026-06-12, version 1.2.0* Better than the actual m1 ### 5/5 — hours of fun *2026-05-31, version 1.2.0* I love classic synthesizers and being able to noodle around with hundreds of M1 patches to my hearts content for the cost of a trip to a burger joint is awesome. I use it inside iMPC Pro and it works great. ### 5/5 — Magnifico *2026-04-18, version 1.2.0* El mejor teclado ### 5/5 — Korg 01W y mapeo *2025-12-19, version 1.2.0* Me gustaría que se pudiera mapear con un controlador Arturia keylab Essential o cualquier otro pero que añadieran la opción. Estaría genial que desarrollaran el VST del Korg 01w, sería un éxito, lo tuve en hardware y es increíble el sonido que tenía. ### 5/5 — Great ! *2025-12-14, version 1.2.0* Almost perfect ### 5/5 — THE ….. M1 !!!!! *2025-12-14, version 1.2.0* iM1 est assurément l’app synthé la plus fiable de toutes celles que j’ai pu obtenir à ce moment. J’ai pris tous les packs de cartes y compris T1 qui est la génération d’après. L’appli est stable et supporte très bien la cohabitation dans AUM (certaines, pourtant de synthés réputés décrochent). iM1 n’a subit aucun désagrément pendant la grosse mise à jour iOS iPhone de 18.x à 26 alors que d’autres app de zics ont eu des vapeurs, des latences ; qui se sont résolues au bout de deux jours, mais iM1 est resté tout le temps opérationnelle. (Apple a changé sa façon de numéroter les iOS). Le module de recherche d’un son par critères de sonorité ou ambiance sonore souhaitée est très bien fait. Ne changez rien ! A priori uniquement disponible en roastbeef, je suis en train de traduire la doc en bon solognot. Je la mettrai en ligne une fois finie … un jour … :) …. Que les bretons, les berrichons, les corses, gens du pays d’oc et les autres se rassurent, vous la comprendrez aussi. :) C’est mon appli fétiche ; même si j’en utilise d’autres pour des gros sons. Elle fonctionne toujours ! Je l’utilise principalement pour les petites sorties sans matos "lourd", pour les petites répèt’s, en vacances …. Elle est toujours là. Soit dans l’iPad ou l’iPhone. Et j’ai toujours avec moi le "fameux" camera connection kit sans lequel aucun clavier midi ne peut-être connecté (les derniers devices Apple sont en USB C et s’en passent). Mon utilisation est uniquement le presets déjà faits. Je n’ai pas le temps ni l’envie de chercher à créer ni modifier des sons. La communication de l’audio en numérique via l’USB passe très bien. J’ignore si l’appli y est pour quelque chose mais j’utilise toujours, soit un boîtier carte son, soit un clavier compatible audio USB dont les DAC dans les deux cas sont bien meilleurs que ceux d’un iPad quelle que soit sa génération (la sortie casque n’est pas faite pour ça). Mais une fois envoyé sur une petite sono personne n’est capable de dire que le son produit provient d’une app iOS ! Voilà : RAS :) ### 5/5 — この音！ *2025-12-03, version 1.2.0* 懐かしい！ 今聴いてもすばらしい。 ありがとうございます。 ### 5/5 — Switching between patches between combi and program *2025-12-02, version 1.2.0* Fix this bug please ### 5/5 — 助けてください。 *2025-11-21, version 1.2.0* 日頃からGaragebandの方でプラグインとして使わせていただいておりますが、本日から「iM1はお使いのipadでは使用できません」というメッセージが表示されてGarageband経由で開けなくなりました。 容量は不足しておらず、強制再起動等色々試してみましたが復旧しませんでした。 とても気に入っていたアプリだったのでかなり落ち込んでいます。 もうガレージバンドでは使えなくなってしまうのでしょうか。 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-13.*