Multitracker vs JAX MIDI ModulePlayer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Multitracker
This app allows musicians to play multiple audio and MIDI files simultaneously using playlists. It offers flexible audio routing to external interfaces and headphone outputs, along with comprehensive MIDI track control and synchronization. A built-in metronome and extensive playlist management enhance live performance capabilities.
- Multitrack audio and MIDI playback
- Flexible audio routing to external interfaces
- Individual track EQ, compression, and volume control
- MIDI track assignment and transposition
- Synchronized metronome with selectable sounds
- Configurable playlists with playback control
- MIDI Learn for external control
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Multitracker is a live player that allows you to play multiple audio files and midi files comfortably and flexibly with the help of playlists. If a USB audio interface is connected to the iPad, the audio tracks (stems) of a song can be routed to any of the outputs of the interface. At the same time, the headphone output can also be used as an additional routing destination, so that you have two additional channels available. To play midi songs, Multitracker provides a midi player that allows each MIDI track to be assigned to any existing Midi device (whether via USB or iPad instrument such as Sound Canvas). Of course a midi song can be played in sync with audio tracks. If necessary, a metronome with 9 different click sounds and freely selectable time signature can be added to your song or be played alone. It has never been easier to play multitrack and midi songs on stage! Features: - supports any class compliant audio interface - Headphone output selectable as additional routing destination (2 additional channels) Audio Player: - unlimited number of audio tracks (stems) depending on the performance of your iPad - Supports wav, mp3, flac, aac, ac3 (also mixed in one song) - Each audio track (Stem) can be routed to any output - Audio tracks can also be routed to outputs that are not currently connected - equalizer per track - compressor per track - Volume fader per track - Solo and mute buttons per track - Copy / Paste function for routing and volume for faster configuration - List of all audio routings - Output channel busses with faders and listing of all assigned stems Midi Player: - Supports MIDI Format 0 and 1 - Each MIDI track can be assigned any MIDI locations (external / internal) - at the same time - Transpose for each track separately or for the entire song - Midi Clock Send in sync with the Midi Song (without Song Position Pointer) - Switchable automatic metronome - changeable Tempo - Program change commands adjustable for each channel and midi device - Prgogram Changes can be sent when the song is started or loaded - You can also save songs that contain only Program Change messages but no Midi Song - sends MIDI Time Code (MTC Master) - sends MIDI Machine Code (MMC) Metronome: - can be played with or without Midi Song - Choice of 9 different click sounds - Time signature can be set arbitrarily - Adjustable Click Duration - Midi Clock synchronous to the metronome Playlist: - Playlist is easy to create with pre-configured songs - Pause between songs on / off switchable - Quicksave-option - Display of faders configurable - Size of faders configurable - Playlists can be saved - Playlists can be adjusted while playing - FastForward / Rewind - Pause - Start / Stop / Pause / Skip / VolumeFader controllable via Midi (Midi Learn) - Songs selectable by MIDI Program Change commands Live View: - extra large song title (as well as next titles) - extra large transport buttons - Playlist View can be faded in - Pause / Start Next Buttons can be faded in Fast Forward / Rewind general: - works in background - import / export all song settings and playlists for backups and migration - import / export audio data from / to cloud services (iCloud, Dropbox etc. ) - share audio files between apps - 3 free demo songs to download - Multitracker is permanently extended and improved! System Requirements: - iPad with iOS 9 or later Optional: - USB-Audio Interface (Class Compliant) - Lightning to USB-Cable or Camera Connection Kit (if you want to provide your iPad with power when connected to USB Interface)
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: Multitracker at Free against JAX MIDI ModulePlayer's $29.99. Multitracker also leads on review sentiment (83% vs 50%) and update cadence (every 2 months vs every 6 months). JAX MIDI ModulePlayer's advantage is in-app purchases (none vs 4) and device support (4 vs 1). 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
Multitracker is free to download; JAX MIDI ModulePlayer costs $29.99 up front. Multitracker sells 4 one-off in-app purchases. JAX MIDI ModulePlayer asks for nothing beyond the download.
Multitracker holds the better App Store score, 4.4 against 4.2. That said, the two scores are not equally well evidenced: Multitracker has 145 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 83% of Multitracker's written reviews are positive against 50% of JAX MIDI ModulePlayer's.
Multitracker ships an update every 2 months, JAX MIDI ModulePlayer every 6 months. The most recent releases landed on September 28, 2026 and September 18, 2026 respectively.
| Parameter | Multitracker | JAX MIDI ModulePlayer |
|---|---|---|
| Price | Free — better | $29.99 |
| Rating | 4.4 (145 ratings) — better | 4.2 (5 ratings) |
| Positive reviews | 83.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 145 — better | 5 |
| Update frequency | Every 2 months — better | Every 6 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 9.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 36 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Sebastian Sygulla | Jens Guell |
Customer experience
Multitracker
JAX MIDI ModulePlayer
Bugs and requests
Multitracker
Reported bugs
4 issues- Issues with MIDI clock sync
- Problems with importing and playing MIDI files
- Disappearing files or songs after updates
- Inability to purchase or restore in-app purchases
Requested features
7 requests- Add tempo change functionality
- Implement a search function for song lists
- Include more EQ and compression controls
- Add support for lyrics and chord charts
- Improve MIDI integration and mapping
Show 2 moreShow fewer
- Implement a high-contrast mode for outdoor use
- Allow saving song configurations as presets
JAX MIDI ModulePlayer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Multitracker
- Effects$3.99
- just Midi$13.99
- just Audio$19.99
Show 1 moreShow fewer
- Audio AND Midi$26.99
JAX MIDI ModulePlayer
No in-app purchases
Questions
Is Multitracker free?
Is JAX MIDI ModulePlayer free?
Which has better reviews, Multitracker or JAX MIDI ModulePlayer?
Do Multitracker or JAX MIDI ModulePlayer have ads?
Which is updated more often, Multitracker or JAX MIDI ModulePlayer?
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