KORG iM1 vs MidiQuestEssentialsi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KORG iM1
This app faithfully reproduces the legendary M1 synthesizer, offering its iconic sounds and expanded features for modern music creation. It provides a vast library of presets and intuitive performance tools, making it accessible to both experienced musicians and beginners.
- Faithful reproduction of original M1 sound
- Expanded filter resonance and 18 effects
- Gigantic library of 3,300 sounds
- Intuitive KAOSS pad for performance
- Smart Sound Browser for quick sound selection
- Compatible with KORG Gadget
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A complete reproduction - and more - of the legendary M1 that defined an era. Mobile Digital Synthesizer for the iPad. ● Selected by Apple as "App Store Best of 2015" ● Ranked #1 on the App Store on Top Paid Music category in more than 20 countries! (15/5/27) 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. The common element of electronic instruments that have left their name in history is that they had a unique sound that was difficult if not impossible to replicate. Sounds such as the “M1 Piano” is instantly recognizable and have appeared on countless hit records over many years, and yet these are sounds that could only be produced by the M1. And that’s what you can now have on your iPad! ● A faithful reproduction of the original M1 Sound The PCM data provides the library of the original M1. For the hardware, we analyzed the circuit diagram of the original design, and completely replicated it in software down to the last detailed parameters. Engineers with an exhaustive knowledge of the M1 made careful adjustments in order to obtain the sound of the original unit, something that cannot be obtained simply by sampling the original sounds. ● A continued evolution of the M1 Not content with simply reproducing the original, iM1 provides further evolutionary developments. Synth parts now have the Filter Resonance that was requested at the time of the original. The effect parts, originally consisting of only two effects, have been powered-up to 18 effects. The user interface has also been refreshed with additions such as a KAOSS pad. iM1 is the ultimate version of the KORG M1. ● A gigantic library encompassing 3,300 sounds and 34 cards* In addition to all 19 of the ROM cards originally released for the M1, iM1 also covers the sounds of the M1EX which expanded the internal PCM of the M1, as well as the sounds of the T-series which appeared as an evolution of the M1. There’s also “BEST OF M1”, a selection of 100 great M1 programs. The new “Smart Sound Browser” makes it quick to find the desired sound. You can also view the sounds ranked by how often they are selected by iM1 users around the world. *with all the expansion card installed via in-app purchase ● KAOSS pad lets anybody perform iM1 features a KAOSS pad from the popular KAOSSILATOR, allowing you to perform intuitively just by touching the screen. By using the dual KAOSS pads to play phrases or adjust the sound, even people who are not accustomed to keyboard instruments or knowledgeable about synthesizers can enjoy performing the iM1. There’s also a conventional keyboard, as well as the “Smart Keyboard”, which lets you specify a scale setting and play phrases with a single finger. ● Use with KORG Gadget for song production iM1 can be used together with Gadget, the music production DAW app that won the App Store Best App of 2014 award in Japan. If both apps are installed, you can use iM1 as a sound module within Gadget, taking advantage of the program sounds in iM1 for music production. iM1 also supports Audiobus and Inter-App Audio, so it can also be used for GarageBand etc. ● Connect a MIDI keyboard and use as a sound module In addition to enjoying iM1 on its own, you can connect a USB MIDI keyboard* via a Lightning adaptor and play the iM1 as an external sound module. You can easily take along an even more powerful workstation sound module as part of your iPad-based compact mobile system. *microKEY, nanoKEY etc. ● Interchangeable with the KORG Legacy Collection and the original M1 Sounds that you create in iM1 can be sent from your iPad via iTunes to a Mac/PC. If you have the Legacy Collection M1, you can use those sounds in a DAW. More info at korg.com
MidiQuestEssentialsi
This application serves as a comprehensive editor and librarian for MIDI SysEx data, supporting a vast array of popular hardware instruments. It allows users to manage and manipulate sound parameters for a wide range of synthesizers and other MIDI devices.
- SysEx Editor
- SysEx Librarian
- Supports over 900 MIDI instruments
- Parameter management
- Sound editing
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Midi Quest is a SysEx Editor/Librarian supporting over 900 of the most popular MIDI hardware instruments including: 360 Systems : MIDI Patcher Access : Virus A Akai Pro : EWI4000S, MAX25, MAX49, MPD24, MPD26, MPD32, MPK25, MPK49, MPK61, MPK88 Alesis : D4, DM5, DMPro, MidiVerb IV, NanoBass, NanoPiano, NanoSynth, QS 6, QS 7, QS 8, QSR, QuadraSynth+Piano Casio : CZ-1, CZ-1000, CZ-101, CZ-3000, CZ-5000, VZ-1, VZ-10 Clavia : Nord Lead 2, Nord Rack 2 Crumar : Bit-01, Bit-99 Dave Smith : Evolver, Mono Evolver, Mopho, OB-6, Poly Evolver Rack, Prophet 08, Tetra E-MU : Audity 2000 (v1), B-3 Turbo, B-3, Carnaval, Classic Keys, Launch Pad, Mo' Phatt Turbo, Morpheus, MPS+, MPS, Orbit/2, Orbit 3, Orbit, Planet Earth Turbo, Procussion, Proteus/1, Sound Engine, Ultra Proteus, Vintage Keys+, Virtuoso 2000, XL-1 Turbo, XL-1 Encore Electronics : Jupiter-8, Moog Source, OB-8 Ensoniq : DP/2, DP/4, ESQ-1, ESQ M, KMX-16, KMX-8, KS-32, KT 76, KT 88 Plus, KT 88, Mirage+ MASOS, MR Rack, MR 61, MR 76, SD 1, SQ1 Plus, SQ1+/32, SQ1+, SQ1, SQ2/32, SQ2, SQ80, SQR Plus, SQR, TS10, TS12, VFX-SD II, VFX, ZR 76 Evolution : EVS-1 Fender : Chroma Polaris JL Cooper : FaderMaster, MSB+, MSB Kawai : GMega, K1, K3, K4, K5, K5000, Spectra, XD-5, XS-1 KMX : 8x8, MIDI Central Korg : 01/W, 03R/W, 05R/W, 707, A2, A4, DS-8, DSM-1, DSS-1, DVP-1, DW-6000, DW-8000, EA-1, ER-1, EX-800, i1, i2, i3, i30, i4S, i5M, i5S, iS35, iS40, is50, iX300, Karma, Kronos, M1, M3/R, MicroKorg XL+, MS2000, N1, N264, N364, N5, NS5R, NX5R, OASYS, Poly-800 II, Polysix, Prophecy, SG-ProX, SG-Rack, T1, T2, T3, TR 61, TR 76, Trinity Plus/Pro, Triton 61, Wavestation, X2, X3, X3R, X5, X5D, X5DR, Z1 EX, Z1 Kurzweil : K2000, K2500 Lexicon : LXP-1, LXP-15, LXP-5, Reflex Line 6 : Bass POD Pro, Floor POD Plus, POD Pro, POD (V.1), Pocket POD Lintronics : Memorymoog M-Audio : Venom Marion Systems : MSR-2, ProSynth, SR-16 MIDI Solutions : Pedal Controller MOTU : 7s Novation : A-Station, Bass Station Rack, DrumStation Rack, K-Station, KS-Rack, KS4, KS5, Nova, Super BassStation, X-Station 25 Oberheim : Matrix-1000, OB-8, Xpander Octave Plateau : Voyetra 8 Peavey : AEQ2800, DPM-V3, DPM3, Spectrum Bass Quasimidi : Quasar, Turbo-Volcon Rane : MPE-14, MPE-28 Roland : A-880, BOSS DR-5, BOSS GT-6, BOSS SE-50, CM-32L, CM-32p, CM-64, D-10, D-110 (nhs), D-110, D-20, D-5, D-50, D-550, D-70, D2, DEP-3, DEP-5, E-660, Edirol SD-20, EG-101, Fantom FA-76 (v2), GM-70, GP-16, GP-8, GR-09, GR-30, GR-33, GR-50, GS Compatible, JD-800, JD-990, JP-8000 (Alt), JP-8080, Juno-1, Juno-2, JV-1000, JV-1010, JV-1080, JV-2080, JV-80, JV-880, JV-90, JX-305, JX-8P, M-BD1 Bass&Drums, M-DC1 Dance, M-GS64, M-OC1 Orchestra, M-SE1 String Ensemble, M-VS1 Vintage Synth, MC-303, MC-307, MC-505, MKS-50, MKS-7, MKS-70, MKS-80, MT-100, MT-32, P-55, PAD-80, PMA-5, R-5, R-8 MkII, R-8, R-8M, RS-5, RS-9, S-330, S-50, S-550, SC-50, SC-55, SC-55ST, SC-88 Pro, SC-88, SC-880, SC-88ST Pro, SC-88VL, SC-Pro, SH-32, SK-50, SK-88 Pro, SK-88, Sound Canvas, SPD-11, SPD-20, SPD-8, SRV-2000, SRV-3030, TD-5, TD-7, U-110, U-20, U-220, VC-1, VM-3100 Pro, XP-10, XP-30, XP-50, XP-60, XP-80, XV-2020, XV-3080, XV-5050, XV-5080, XV-88 Sequential : Max, Multitrak, Prophet 10, Six-Trak Studio Electronics : ATC-1, SE-1 TC Electronic : G-Major/2, G-Sharp, G-System, M350 TC-Helicon : VoiceDoubler, VoiceLive, VoiceOne, VoicePro, VoiceWorks Plus TECH 21 : SansAmp PSA-1.1 Waldorf : 4Pole, MicroQ, Microwave II EX, Pulse 2, Pulse, Q Yamaha : AN1x, AN200, CBX-K1XG, CS2x XG, CS2x Performance, CS6R, CS6x, DMP9-16, DMP9-8, DX1, DX100, DX11, DX21, DX27, DX5, DX7IID, DX7IIFD, DX7, DX7S, DX9, EX5, EX5R, EX7, FB-01, FS1R, Motif, Motif ES, MU10, MU100, MU100R, MU128, MU15, MU5, MU50, MU80, MU90R, MX49, MX61, PLS1, ProMix 01, RM1x, RM50, RX11, RX7, S30, S80, S90, SY22, SY35, SY55, SY77, SY85 (v2 ROMs), SY85, TG100, TG300, TG33, TG500, TG55, TG77, TQ5, TX216, TX7, TX802, TX816, TX81Z, V50, VL1 V2, VL1, VL7 V2, VL70m, W5, W7, YS100, YS200
Screenshots
Verdict
The clearest difference is review sentiment: KORG iM1 at 82% against MidiQuestEssentialsi's 0%. KORG iM1 also leads on rating (4.7 vs 1.0) and ratings volume (1K vs 2). MidiQuestEssentialsi's advantage is price (Free vs $29.99) and update cadence (every 5 weeks vs every 7 months). On ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
MidiQuestEssentialsi is free to download; KORG iM1 costs $29.99 up front. KORG iM1 sells 2 one-off in-app purchases and MidiQuestEssentialsi sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
KORG iM1 holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: KORG iM1 has 1K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 82% of KORG iM1's written reviews are positive against 0% of MidiQuestEssentialsi's.
KORG iM1 ships an update every 7 months, MidiQuestEssentialsi every 5 weeks. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.
| Parameter | KORG iM1 | MidiQuestEssentialsi |
|---|---|---|
| Price | $29.99 | Free — better |
| Rating | 4.7 (1K ratings) — better | 1.0 (2 ratings) |
| Positive reviews | 81.5% of reviews — better | 0.0% of reviews |
| Number of ratings | 1K — better | 2 |
| Update frequency | Every 7 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #83 — better | — |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 12.0 | 10.2 — better |
| Further details — not scored | ||
| Size | 200 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | KORG INC. | Sound Quest |
Customer experience
KORG iM1
MidiQuestEssentialsi
Bugs and requests
KORG iM1
Reported bugs
3 issues- Disappearing or missing purchased sound cards
- Bluetooth MIDI connectivity issues
- Compatibility problems with certain iOS versions or devices
Requested features
4 requests- 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
MidiQuestEssentialsi
Not enough reviews yet to summarise bugs or requests.
In-app purchases
KORG iM1
- M1 Cards Pack$4.99
- T1 Cards Pack$4.99
MidiQuestEssentialsi
- Dave Smith Tetra$24.99
- Yamaha Reface CS$24.99
- Yamaha Reface CP$24.99
Show 7 moreShow fewer
- TC-Helicon VoiceWorks$29.99
- Roland D-50$39.99
- Waldorf Blofeld$39.99
- Untergeek Matrix-6R$39.99
- Dave Smith Toraiz AS-1$49.99
- Korg N364$54.99
- MQEssentials v1 All Instrument$199.99
Questions
Is KORG iM1 free?
Is MidiQuestEssentialsi free?
Which has better reviews, KORG iM1 or MidiQuestEssentialsi?
Do KORG iM1 or MidiQuestEssentialsi have ads?
Which is updated more often, KORG iM1 or MidiQuestEssentialsi?
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