bismark bs vs KORG Module Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
bismark bs
This professional sampler allows you to load SoundFont and DLS libraries to access a wide range of instruments. It functions as a powerful AUv3 plug-in instrument within DAWs or as a standalone app with a built-in MIDI player and extensive controller support.
- AUv3 plug-in instrument
- Load SoundFont (.sf2) and DLS libraries
- 16-part multitimbral playback
- Scalable on-screen keyboard
- Pitch bend wheel and CC controllers
- USB and Bluetooth MIDI support
- Built-in SMF player
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bismark bs-16i is a professional AUv3 SoundFont sampler for iOS and iPadOS. Use it as a powerful plug-in instrument inside your favorite DAWs. bs-16i is powered by a synthesizer engine adopted in professional and commercial audio equipment. With the optional Hi-Res Engine, it delivers extremely clean, low-noise sound using 100% floating-point audio processing. Load SoundFont (.sf2) and DLS libraries and access a vast collection of instruments. A General MIDI–compatible setup is included by default with "GeneralUser GS SoftSynth" by S. Christian Collins. AUv3 plug-in features: • Works as an AUv3 instrument in Logic Pro, GarageBand, AUM, and other compatible hosts • Automation-ready parameters • Designed for both iPhone and iPad workflows App features: • Scalable on-screen keyboard • Pitch bend wheel and CC controllers • Built-in SMF (Standard MIDI File) player • USB and Bluetooth MIDI support Connect external MIDI keyboards, controllers, and sequencers, or drive bs-16i from other apps using Virtual MIDI. Common (AUv3 and App) features: • 16-part multitimbral playback • Full support for standard MIDI messages • SoundFont, DLS, MIDI, and Scene files are managed in the “bs-16i” folder on iCloud Drive and automatically synced across all your iOS, iPadOS, and macOS devices. iCloud Drive and local storage can be selected for each Scene. Notes: • To load SoundFont or DLS files, sufficient free memory exceeding the file size is required. • This application collects the following information: device name, OS version, SoundFont/DLS file name, and Core MIDI interface name.
KORG Module Pro
This app provides a high-quality mobile sound module for iOS devices, offering professional piano and keyboard sounds. It's ideal for live performance and music production, allowing users to create studio-quality music anywhere with just an iOS device and a MIDI keyboard. Expandable sound libraries and integration with other music apps enhance its capabilities.
- High-quality piano and keyboard sound engines
- Six dedicated sound engines
- Ultra-low latency
- AUv3 support
- Set list function with score viewer
- Expansion sound libraries
- Performance recording and sharing
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The best sounds, available to everyone. Announcing a new high-quality mobile sound module app for iOS! • Achieved the #1 position*on the App Store* in the Top Paid Music App category *USA, UK, Japan, Germany, France, Italy, Canada and much more! Ideal for performance and music production, KORG Module is a high-quality sound module app for iOS that contains a professional sound library. With just your iPad/iPhone and a MIDI keyboard such as the new microKEY, you can play studio-quality keyboard and grand piano sounds anywhere. You can also use the sounds of KORG Module for the KORG Gadget music production app. Maintaining its position at the forefront of mobile music apps, KORG now offers you a new style of performance and production with KORG Module for iOS. FEATURE HIGHLIGHTS ● Stunningly high-quality piano and a full range of keyboard sound engines ● Six dedicated sound engines : Acoustic Piano/Electric Piano/Clav/Organ/Multi/Hybrid ● Ultra-low latency sound engine ● AUv3 support ● With just an iPad/iPhone and the new microKEY, you can enjoy great sound anywhere ● Mobile music production in tandem with KORG Gadget ● Convenient set list function with a PDF/image score viewer and music player ● Power-up even more with expansion sound libraries: TRITON Best Selection / Ivory Mobile Grand and more! ● Easily record your performances, and share song sketches on SoundCloud ● Integrating iOS technology that's indispensable for the mobile environment *** Stunningly high-quality piano and a full range of keyboard sound engines *** KORG Module has five dedicated sound engines, providing a number of high-quality sounds that can be played back on your iOS using the "NATIVE ENGINE”. These engines feature technology that was developed for KORG's historic line of workstations and synthesizers including: Acoustic Piano, Electric Piano, Clav, Organ, Multi, and Hybrid. Each display has carefully selected parameters, making it convenient and easy to adjust the sounds. We’ve also carefully ensured ideal playability and designed the system for ultra-low latency. Once you experience the quality of the sounds being produced from the slim body of your iPad, you'll agree that Module is radically different than anything else currently on the market. *** With just an iPad/iPhone and the new microKEY, you can enjoy great sound anywhere *** KORG Module and the microKEY are the best possible combination for a mobile performance environment. With the new microKEY which supports a damper, or the microKEY Air which provides a wireless connection via Bluetooth MIDI, your iPad can transform into a high-quality sound module. In your room, in a practice studio, or performing on stage,, it's easy to set up and immerse yourself in a superb playing experience wherever you are. Of course you can also use any MIDI keyboard that can connect to your iPad via Apple Lightning - USB camera adapter. The velocity curve function conforms the sound to your playing dynamics, so you'll be able to perform comfortably using any MIDI keyboard. Even if you don't have a MIDI keyboard, you can use the apps on-screen keyboard, phrase function, or MIDI player to play the sounds. The MIDI player can load and play standard MIDI files for your listening enjoyment. *** Mobile music production in tandem with KORG Gadget *** You can also use the high-quality KORG Module sounds inside KORG Gadget, the mobile music production app. If you have Module and Gadget, the five tools Salzburg, Montreal, Alexandria, Firenze, and Glasgow are added inside, allowing access the same way as Gadget. These five powerful gadgets will add even more variety to your music productions, raising your music to the next level. Whether for performance or for production, both of these apps deliver ultimate sound. More info at korg.com
Screenshots
Verdict
The clearest difference is price: bismark bs at $7.99 against KORG Module Pro's $39.99. KORG Module Pro's advantage is rating (4.6 vs 3.8) and ratings volume (1.2K vs 125). On review sentiment, update cadence, 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
bismark bs costs $7.99 and KORG Module Pro $39.99 up front. bismark bs sells 3 one-off in-app purchases and KORG Module Pro sells 20 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
KORG Module Pro holds the better App Store score, 4.6 against 3.8. That said, the two scores are not equally well evidenced: KORG Module Pro has 1.2K ratings behind it against 125, so its average is the more settled of the two. Written reviews point the same way: 62% of bismark bs's written reviews are positive against 64% of KORG Module Pro's.
Both ship on a similar rhythm, roughly monthly. Both last shipped on October 18, 2026.
| Parameter | bismark bs | KORG Module Pro |
|---|---|---|
| Price | $7.99 — better | $39.99 |
| Rating | 3.8 (125 ratings) | 4.6 (1.2K ratings) — better |
| Positive reviews | 62.3% of reviews | 63.8% of reviews — better |
| Number of ratings | 125 | 1.2K — better |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 51 MB | 1.7 GB |
| Age rating | 4+ | 4+ |
| Developer | bismark LLC | KORG INC. |
Customer experience
bismark bs
KORG Module Pro
User reviews
bismark bs
From 125 App Store ratingsWhat we love
- 👍 Great soundfont player
- 👍 Versatile sound options
- 👍 Good MIDI support
- 👍 Useful for GarageBand
- 👍 Easy to use interface
Room to improve
- 🐛 Crashing issues
- 🐛 Legacy version problems
- 🐛 Soundfont loading issues
- 🐛 Notes not playing
- 🐛 MIDI cutting out
KORG Module Pro
From 1.2K App Store ratingsWhat we love
- 🎹 Excellent sound quality
- 🎨 Versatile sound library
- 📋 Useful set list functionality
- 🔌 Good MIDI integration
- 💻 Seamless integration with Korg Gadget
Room to improve
- 🔇 Low volume/output issues
- 🐛 Crashes and stability problems
- 🔀 Inconsistent behavior when switching patches
- 🔒 Difficulty restoring purchased content
- 🔍 Limited sound customization options
Bugs and requests
bismark bs
Reported bugs
49 issues- MIDI cutting out intermittently
- Copy-pasted MIDI data plays piano sound instead of selected instrument
- Notes sometimes not playing during playback or export
- Legacy edition not loading in GarageBand
- App crashes when loading projects with legacy edition
Show 44 moreShow fewer
- Refuses to open unit extension and crashes app
- Cannot load songs that use the legacy version
- Legacy version won't load, crashes GarageBand
- Cannot import MIDI song after last upgrade
- Projects made before upgrade are unusable
- App crashes
- Soundfonts disappear after opening the app
- New AUv3 or legacy AUv3 not working correctly
- New AUv3 stuck on default piano
- Legacy AUv3 doesn't access iCloud .sf2 files
- Notes disappearing in playback
- Imported soundfonts not displayed in settings but visible in edit
- App not opening after changing to a newer iPad
- Soundfonts only partially loaded from folder
- Notes sometimes fail to play, possibly velocity data issue
- Articulations not interpreted well, fixed attack type
- Stuck notes
- AUv3 not working in GarageBand, loading as 'Inter-app unit'
- App closing by itself on iPhone SE 2nd Gen
- Sound cuts out when merging tracks
- Sustain stuck, affecting app usage
- AUv3 version doesn't recall soundfonts
- Delay in sound output after pressing keys
- MIDI program change not working correctly on iOS 14
- Notes sometimes don't play in GarageBand
- Transpose not working
- Portamento setting not saving
- AUv3 not loading in BeatMaker, Nanostudio, etc. after update
- No sound when connecting to Yamaha ypg 235
- Busy Boy sound not found
- Latest update crashes on startup on iPad 4 (iOS 8.4.1)
- BS-16i drops audio in AUM
- Cubasis issue: BS resets to factory when stopping project
- App crashes in Beatmaker 3
- No MIDI out to Audiobus MIDI chain when playing MIDI file
- Cannot access 'INBOX'
- Tune option makes app sound like a toy
- Sustain getting stuck, especially on continuous effects
- App crashes during settings changes on iPad
- Sound cutting out during MIDI playback
- App crashes with large soundfonts
- MIDI stopped working after last update
- App crashes when using more than 16 notes
- UI changed, making instrument selection less intuitive
Requested features
12 requests- More features for sound design
- Affected filter cutoff by low velocity
- Envelope affected by cutoff
- Organ effects like 'Wah'
- Add a manual/documentation
Show 7 moreShow fewer
- Improve UI/design
- Option to change theme color
- Split keyboard option
- MIDI learn for sliders/knobs
- Background Audio support
- Transpose button
- Scale keyboard to 17 keys on iPhone
KORG Module Pro
Reported bugs
4 issues- Purchased content not appearing or disappearing
- Sustain pedal not functioning properly
- Polyphony issues causing notes to drop out
- Compatibility problems with newer iOS versions
Requested features
5 requests- Add split and layer functionality
- Implement MIDI learn capabilities
- Improve set list management with reordering and copying
- Add support for background audio and AUv3
- Provide better integration with other Korg apps
In-app purchases
bismark bs
- 128 Polyphony$2.99
- Hi-Res Synthesizer Engine$4.99
- Compressor$4.99
KORG Module Pro
- Hybrid Synth Essential 2$3.99
- Future Synths$4.99
- London Symphonic Orchestra$6.99
Show 17 moreShow fewer
- Dream Pop$6.99
- Petrichor$6.99
- Shoulder Pads$6.99
- Space Western$6.99
- Wurley Electric Piano$9.99
- Mellow Tape Keyboard$9.99
- Soundiron Voice of Rapture Soprano$9.99
- Wild Kits$9.99
- Dreamy Synths$9.99
- Organ & Clav Collection$19.99
- TRITON Best Selection$19.99
- 80's Electric Piano$19.99
- Orchestral Dreams$19.99
- Classic EP-88M$19.99
- Ivory Mobile Grand$29.99
- Module Performance Expansion$29.99
- Ivory Mobile American D$29.99








