Comparison

Sweet MIDI Player vs PianoToolbox

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

PianoToolbox

Connect to your digital piano via Bluetooth to unlock its full capabilities. Explore and customize instrument sounds with deep parameter editing, and manage built-in musical content like metronomes and songs.

Highlights
  • Visual sound browser
  • Deep sound parameter editing
  • Custom sound storage
  • Metronome and rhythm control
  • Built-in song playback
Read full description

Using Bluetooth to pair the app to your piano, you will discover the full potential of your instrument. Features: 1. Browse the available sounds quickly using our visual browser. 2. Edit the piano sounds by accessing deep parameters such as string resonance, damper resonance, reverb, chorus, etc. You can also adjust pitch (tuning and temperament) and control different keyboard settings (split, layer, etc). 3. Store your own sounds as favourites and recall them instantly. 4. Browse, play and control the music contents on your piano such as metronome, built-in rhythm accompaniments and songs.

Screenshots

Sweet MIDI Player3 screens
PianoToolbox4 screens

Verdict

The call

The clearest difference is review sentiment: PianoToolbox at 100% against Sweet MIDI Player's 62%. PianoToolbox also leads on in-app purchases (none vs 1) and rating (4.0 vs 3.6). Sweet MIDI Player's advantage is ratings volume (89 vs 1) and update cadence (every 2 months vs every 7 months). On price, ads and device support 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

Both are free to download. Sweet MIDI Player sells 1 one-off in-app purchase. PianoToolbox asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PianoToolbox holds the better App Store score, 4.0 against 3.6. That said, the two scores are not equally well evidenced: Sweet MIDI Player has 89 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 62% of Sweet MIDI Player's written reviews are positive against 100% of PianoToolbox's.

UpkeepUpdate frequency

Sweet MIDI Player ships an update every 2 months, PianoToolbox every 7 months. Both last shipped on October 24, 2026.

Scorecard7 real differences · 3 level
Sweet MIDI Player versus PianoToolbox: the parameters behind the verdict, then further details
ParameterSweet MIDI PlayerPianoToolbox
PriceFreeFree
Rating3.6 (89 ratings)4.0 (1 ratings) — better
Positive reviews62.1% of reviews100.0% of reviews — better
Number of ratings89 — better1
Update frequencyEvery 2 months — betterEvery 7 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013 — better
Further details — not scored
Size5 MB43 MB
Age rating4+4+
DeveloperRoni MusicClemen Software (ShangHai) Co., Ltd

Customer experience

Sweet MIDI Player

All ratings89 ratings
Positive62.9%
Neutral11.2%
Negative25.8%
Written reviews232 reviews
Positive62.1%
Neutral9.1%
Negative28.9%

PianoToolbox

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

PianoToolbox

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

PianoToolbox

No in-app purchases

Questions

Is Sweet MIDI Player free?
Sweet MIDI Player is free to download, with in-app purchases available.
Is PianoToolbox free?
PianoToolbox is free to download, with no in-app purchases.
Which has better reviews, Sweet MIDI Player or PianoToolbox?
PianoToolbox is rated higher. Sweet MIDI Player averages 3.6 out of 5 from 89 ratings, while PianoToolbox averages 4.0 from 1 ratings.
Do Sweet MIDI Player or PianoToolbox have ads?
Neither Sweet MIDI Player nor PianoToolbox shows ads.
Which is updated more often, Sweet MIDI Player or PianoToolbox?
Sweet MIDI Player ships an update every 2 months, and PianoToolbox every 7 months. Most recently, Sweet MIDI Player was updated on October 24, 2026 and PianoToolbox on October 24, 2026.

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