Comparison

Sweet MIDI Player vs JAX MIDI ModulePlayer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Sweet MIDI Player

This application allows users to play and edit MIDI files. It offers features like transposing, tempo changes, channel muting, and synchronized lyric display. Users can also manage playlists and utilize a built-in sound library.

Highlights
  • MIDI file playback
  • MIDI file editing
  • Tempo and transpose control
  • Channel muting
  • Synchronized lyric display
  • Playlist management
  • Built-in sound library
Features
Read full description

Sweet MIDI Player is a MIDI player for not only auditioning all types of MIDI files, but for modifying the MIDI files themselves. Use its mixer-like interface to easily edit the control messages, transpose the music, change the tempo, mute desired MIDI channels, and save the end results to disk. View lyrics synchronized with the music (MIDI Karaoke files). It also includes a playlist function which allows you to create and manage playlists. Built in MIDI sound library with support for DLS/SF2 files. Support for CoreMIDI. Upload files using iTunes. This free version is limited to play the first 3/4 of a MIDI file. Software synthesizer engine licensed from bismark.jp

About

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.

Highlights
  • 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
Features
Read full description

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

Sweet MIDI Player3 screens
JAX MIDI ModulePlayer4 screens

Verdict

The call

The clearest difference is price: Sweet MIDI Player at Free against JAX MIDI ModulePlayer's $29.99. Sweet MIDI Player also leads on update cadence (every 2 months vs every 6 months) and ratings volume (88 vs 5). JAX MIDI ModulePlayer's advantage is rating (4.2 vs 3.6) and in-app purchases (none vs 1). On 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

CostPrice · In-app purchases · Ads · Monetization

Sweet MIDI Player is free to download; JAX MIDI ModulePlayer costs $29.99 up front. Sweet MIDI Player sells 1 one-off in-app purchase. JAX MIDI ModulePlayer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

JAX MIDI ModulePlayer holds the better App Store score, 4.2 against 3.6. That said, the two scores are not equally well evidenced: Sweet MIDI Player has 88 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 62% of Sweet MIDI Player'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.

UpkeepUpdate frequency

Sweet MIDI Player ships an update every 2 months, JAX MIDI ModulePlayer every 6 months. The most recent releases landed on October 16, 2026 and October 12, 2026 respectively.

Scorecard7 real differences · 3 level
Sweet MIDI Player versus JAX MIDI ModulePlayer: the parameters behind the verdict, then further details
ParameterSweet MIDI PlayerJAX MIDI ModulePlayer
PriceFree — better$29.99
Rating3.6 (88 ratings)4.2 (5 ratings) — better
Positive reviews62.1% of reviews — better50.0% of reviews
Number of ratings88 — better5
Update frequencyEvery 2 months — betterEvery 6 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.014.0 — better
Further details — not scored
Size5 MB24 MB
Age rating4+4+
DeveloperRoni MusicJens Guell

Customer experience

Sweet MIDI Player

All ratings88 ratings
Positive62.5%
Neutral11.4%
Negative26.1%
Written reviews232 reviews
Positive62.1%
Neutral9.1%
Negative28.9%

JAX MIDI ModulePlayer

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Bugs and requests

Sweet MIDI Player

Reported bugs

3 issues
  • Crashes on iOS 14.2 with Bluetooth MIDI
  • Loses track names when transferring files from iTunes
  • Default instrument settings reset when switching songs

Requested features

5 requests
  • Add MIDI editing capabilities
  • Implement more advanced MIDI controls (e.g., expression, program changes)
  • Develop a dedicated MIDI file editor app
  • Add looping and playback range selection features
  • Improve soundfont management and support for multiple soundfonts

JAX MIDI ModulePlayer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Sweet MIDI Player

One-time1
  • Upgrade to full version$14.99
None

JAX MIDI ModulePlayer

No in-app purchases

Questions

Is Sweet MIDI Player free?
Sweet MIDI Player is free to download, with in-app purchases available.
Is JAX MIDI ModulePlayer free?
JAX MIDI ModulePlayer costs $29.99, with no in-app purchases.
Which has better reviews, Sweet MIDI Player or JAX MIDI ModulePlayer?
JAX MIDI ModulePlayer is rated higher. Sweet MIDI Player averages 3.6 out of 5 from 88 ratings, while JAX MIDI ModulePlayer averages 4.2 from 5 ratings.
Do Sweet MIDI Player or JAX MIDI ModulePlayer have ads?
Neither Sweet MIDI Player nor JAX MIDI ModulePlayer shows ads.
Which is updated more often, Sweet MIDI Player or JAX MIDI ModulePlayer?
Sweet MIDI Player ships an update every 2 months, and JAX MIDI ModulePlayer every 6 months. Most recently, Sweet MIDI Player was updated on October 16, 2026 and JAX MIDI ModulePlayer on October 12, 2026.

Other comparisons