bismark bs vs JAX MIDI ModulePlayer
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.
JAX MIDI ModulePlayer
This app functions as a General MIDI compatible multi-timbre synthesizer and file player. It can be used as a sound module for external MIDI signals or as an audio unit within compatible host applications. Create and play back standard MIDI files with over 370 instruments and drum sets.
- GM/GS compatible synthesizer
- Plays standard MIDI files
- Over 370 instruments and drum sets
- 16 MIDI channels simultaneously
- Audio Unit (AUv3) support
- Standalone host functionality
- Universal app for Apple devices
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There is a manual at: https://midi.digitster.com/JAX%20MIDI/JAX%20MIDI%20ModulePlayer.pdf And a demonstration video at: https://youtu.be/DKwRxcfgy8s JAX MIDI Module & Player can be used as a GM/GS (General MIDI) compatible multi-timbre synthesizer for playing live or as a file player. It is usable as a sound module for external MIDI signals and as audio unit for usage in any host application, which supports Apples AUv3 format. With JAX MIDI Module & Player you can load available standard MIDI files and just play them back. It has inbuilt a fully featured GM/GS synthesizer with over 370 different instruments and drum sets, which is also playable in realtime on 16 MIDI channels simultaneously. The module works like the classic external hardware modules of the late 90s. If used as an audio unit, the MIDI stream is passed thru, so that other apps (like synthesizers and drum machines) can profit from the file playback. Internal sound generation can muted with the main volume slider. Important GM MIDI controllers are supported and also displayed for overview. The playing state of all channels is displayed in realtime. For JAX MIDI Module & Player, you may create your own MIDI files with notes with any external MIDI editor that can create standard MIDI files format 0 or 1, with controllers and tempo changes and all and then play back thru it with the internal or any external instrumentation. AudioUnits (AUv3) require a supporting host application to perform. But our app is able to perform as a standalone host for the embedded unit and provide basic Core MIDI functionality for communicating outside the sandbox. This build is truly 'universal', meaning, the unit is available for: - MacOS (Silicon M1) - iOS (iPhone) - iPadOS (iPads) Note: We now will separate the native macOS release (Mac Catalyst) from the iOS universal release, because native macOS releases need special optimizations. There also will be different prices for the native macOS apps. Making AUv3 technology available across all devices (for usage with GarageBand, Logic Pro X, MainStage 3 on the Mac), is quite a challenge. And we have chosen to deliver the releases across all devices instead of asking multiple times for money. Our builds come with latest technology support for all Apple devices (at the point of release). We therefore always develop with latest Apple frameworks and compilers. But we try to keep the compatibility at minimum requirements as far as even possible. Especially the latest M1/2/3 and cross platform optimizations forced us to drop all the legacy device support (below iOS 14). This is also true for all our older apps, which will be updated step by step to reflect the latest technologies.
Screenshots
Verdict
The clearest difference is price: bismark bs at $7.99 against JAX MIDI ModulePlayer's $29.99. bismark bs also leads on update cadence (monthly vs every 6 months) and ratings volume (124 vs 5). JAX MIDI ModulePlayer's advantage is in-app purchases (none vs 3) and rating (4.2 vs 3.8). On ads 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 JAX MIDI ModulePlayer $29.99 up front. bismark bs sells 3 one-off in-app purchases. JAX MIDI ModulePlayer asks for nothing beyond the download.
JAX MIDI ModulePlayer holds the better App Store score, 4.2 against 3.8. That said, the two scores are not equally well evidenced: bismark bs has 124 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 62% of bismark bs's written reviews are positive against 50% of JAX MIDI ModulePlayer's, so the app with the better star average is not the one people write more warmly about.
bismark bs ships an update monthly, JAX MIDI ModulePlayer every 6 months. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.
| Parameter | bismark bs | JAX MIDI ModulePlayer |
|---|---|---|
| Price | $7.99 — better | $29.99 |
| Rating | 3.8 (124 ratings) | 4.2 (5 ratings) — better |
| Positive reviews | 62.3% of reviews — better | 50.0% of reviews |
| Number of ratings | 124 — better | 5 |
| Update frequency | Monthly — better | Every 6 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 17.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 54 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | bismark LLC | Jens Guell |
Customer experience
bismark bs
JAX MIDI ModulePlayer
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
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- 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
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- 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
JAX MIDI ModulePlayer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
bismark bs
- 128 Polyphony$2.99
- Hi-Res Synthesizer Engine$4.99
- Compressor$4.99
JAX MIDI ModulePlayer
No in-app purchases
Questions
Is bismark bs free?
Is JAX MIDI ModulePlayer free?
Which has better reviews, bismark bs or JAX MIDI ModulePlayer?
Do bismark bs or JAX MIDI ModulePlayer have ads?
Which is updated more often, bismark bs or JAX MIDI ModulePlayer?
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