KORG iM1 vs Portable ORG PRO
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
Read full descriptionHide full description
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
Portable ORG PRO
Transform your device into a versatile musical instrument. Play a wide range of premium instruments, create and record your own melodies, and explore diverse musical scales and rhythms. Customize your sound with effects and enjoy an expressive digital piano experience.
- Play premium instruments
- Touch-sensitive keys
- Record and compose music
- Variety of instruments and beats
- Reverb and equalizer settings
- Unique musical scales
- Authentic styles and rhythms
Read full descriptionHide full description
Get Portatif ORG PRO Now: Your Musical Companion Experience Portatif ORG PRO – an app that transforms your iOS device into a musical playground. Play piano, guitar, oud, clarinet, and more unlimited premium instruments – all at your fingertips. Key Features: Play Your Way: Discover your inner musician with touch-sensitive keys. Tap gently for soft melodies, and press harder for stronger sounds. Light touches give you lower notes, while higher ones need a bit more pressure. Create and Record: Craft your own melodies using Portatif ORG PRO's tools. Record your music for later enjoyment. Be your own composer and performer! Variety of Instruments and Beats: Explore different genres with a range of instruments. Play along with various rhythms, from simple to complex. Customize Your Sound: Fine-tune your music with reverb and equalizer settings. Adjust bass, mid, and high tones to find your unique sound. Choose reverb and room size for the perfect ambiance. Discover New Scales: Try out musical scales like Muhayyerkurdi, Hicaz, Hicazkar, Kurdilihicazkar, Ussak, Ussak (Arabesque), Huseyni, Bayati, Nihavend, Rast, Saba, Dugah, Segah, Huzzam, Acemasiran, Buselik, Ferahnak, Karcigar, Makhur, Neva, Nicriz, Suzinak, Sultaniyegah, Sehnaz, Uzzal, Zengule – inspired by Arabian and Turkish music. Add a unique twist to your melodies. Expressive Digital Piano: Navigate an easy-to-use digital piano. Adjust panel colors, key sizes, tempo, and style to match your mood. Authentic Styles and Rhythms: Dive into rhythms from Arabia, Turkey, and Greece. Choose styles that suit your vibe. Set the tempo to your liking. Explore New Features: Fun Frequencies: Discover the magic of different tuning frequencies – 396 Hz, 417 Hz, 432 Hz, 440 Hz, and 528 Hz. These frequencies add a distinct touch to your musical journey. Entertaining Sounds: Enhance your music with playful sounds like applause, whistles, and chimes. Add excitement to your compositions. Your Musical Adventure Begins: Embark on a journey with Arabic, Turkish, and Greek instruments and rhythms. Let your iPhone and iPad resonate with captivating melodies. Expand Your Horizons: Discover the joy of different scales with presets. Unlock new sounds and enrich your musical adventure. Portatif ORG PRO is your gateway to a vibrant musical experience. Create, explore, and express yourself. Download the app now and let the melodies flow!
Screenshots
Verdict
The clearest difference is review sentiment: KORG iM1 at 82% against Portable ORG PRO's 15%. KORG iM1 also leads on rating (4.7 vs 3.7) and ratings volume (1K vs 3). Portable ORG PRO's advantage is price ($1.99 vs $29.99) and in-app purchases (none vs 2). On update cadence, ads, device support and iOS requirement 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
KORG iM1 costs $29.99 and Portable ORG PRO $1.99 up front. KORG iM1 sells 2 one-off in-app purchases. Portable ORG PRO asks for nothing beyond the download.
KORG iM1 holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: KORG iM1 has 1K ratings behind it against 3, 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 15% of Portable ORG PRO's.
KORG iM1 ships an update every 7 months, Portable ORG PRO every 4 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.
| Parameter | KORG iM1 | Portable ORG PRO |
|---|---|---|
| Price | $29.99 | $1.99 — better |
| Rating | 4.7 (1K ratings) — better | 3.7 (3 ratings) |
| Positive reviews | 81.5% of reviews — better | 14.8% of reviews |
| Number of ratings | 1K — better | 3 |
| Update frequency | Every 7 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 200 MB | 70 MB |
| Age rating | 4+ | 4+ |
| Developer | KORG INC. | Audiosdroid OU |
Customer experience
KORG iM1
Portable ORG PRO
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
Portable ORG PRO
Not enough reviews yet to summarise bugs or requests.
In-app purchases
KORG iM1
- M1 Cards Pack$4.99
- T1 Cards Pack$4.99
Portable ORG PRO
No in-app purchases
Questions
Is KORG iM1 free?
Is Portable ORG PRO free?
Which has better reviews, KORG iM1 or Portable ORG PRO?
Do KORG iM1 or Portable ORG PRO have ads?
Which is updated more often, KORG iM1 or Portable ORG PRO?
Other comparisons















