Comparison

MIDI Opener vs Chant Tools

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

Head to head
About

MIDI Opener

This app is a powerful and modern MIDI player designed for musicians, learners, and creators. It offers visual playback, tempo and key control, and advanced track management. Import custom soundbanks and enjoy features like synchronized lyrics and a 3D visualizer.

Highlights
  • Visual MIDI playback
  • Tempo and key control
  • Advanced track controls
  • 128 General MIDI instruments
  • Built-in effects
  • Custom soundbanks
  • Synchronized lyrics
  • 3D visualizer
Features
Read full description

MIDI Opener – Play, Practice & Export MIDI Files Open any MIDI file and take full control of your music. MIDI Opener is a fast, precise MIDI player built for musicians who want to practice smarter, isolate parts, customize arrangements, route playback to external gear, export their changes, and deeply explore songs without the complexity of a DAW. WHY MIDI OPENER • Instantly open and play standard MIDI files (.mid, .midi) • Ultra-responsive playback with zero clutter • Built for practice, learning, live performance, and musical exploration • Completely ad-free POWERFUL PLAYBACK CONTROL • Change tempo in real time (slow down or speed up) • Transpose key instantly to match your instrument • Mute, solo, and adjust volume for each track • Swap instruments using all 128 General MIDI sounds • Import custom SoundFont (.sf2) and DLS soundbanks • Apply reverb, delay, distortion, and EQ effects EXPORT YOUR CHANGES • Export audio as MP3, M4A, or WAV • Export modified MIDI files with your changes • Save customized practice mixes and arrangements • Perfect for backing tracks, sharing, and rehearsal prep PRACTICE WITH PRECISION • Loop any section with A–B looping • Isolate difficult passages and repeat them • Break down complex songs into manageable parts • Save and instantly restore full practice setups with Snapshots Perfect for pianists, guitarists, producers, singers, music directors, and students. MIDI OUT & EXTERNAL DEVICES • Send MIDI playback to external keyboards, synths, drum machines, and sound modules • Connect over USB, Bluetooth, or Wi-Fi • Compatible with Logic Pro, Ableton Live, GarageBand, and CoreMIDI apps • Use premium external instrument sounds and studio hardware SING AND PRACTICE • View embedded lyrics when available • Real-time word highlighting synced to playback • Great for karaoke and vocal practice SEE YOUR MUSIC • Clean, readable note timeline • Beautiful full screen Focus Mode with ambient visuals, auto hiding controls, and optional synchronized lyrics • Track based visual layout • Retro 3D visualizer • Multiple visual themes ORGANIZE YOUR MIDI LIBRARY • Import from Files, AirDrop, Mail, and other apps • Create playlists • Queue songs for continuous playback UPGRADE OPTIONS Free — The Player & Customizer Open and play MIDI files with powerful built-in customization tools. Includes instrument swapping with all 128 General MIDI sounds, custom SoundFont and DLS support, synchronized lyrics, audio effects, song section looping, visual themes, saved mixes with Snapshots, playlists, queue support, and a complete MIDI song library experience—all in a fast, focused, ad-free player. Practice Pack — The Musician’s Upgrade Unlock advanced practice and arrangement tools including real-time tempo control, key transposition, per-track mute, solo, and volume controls, plus MP3 audio and MIDI export for creating custom practice mixes, backing tracks, and arrangements. MIDI Out — The Producer’s Upgrade Route MIDI playback to external keyboards, synths, drum machines, DAWs, and professional music hardware over USB, Bluetooth, or Wi-Fi using CoreMIDI. All Access — Everything, Once Get the complete MIDI Opener experience with every upgrade included, plus discounted upgrade pricing if you already own another product. FAST. FOCUSED. NO DISTRACTIONS. Made for musicians who want control—not complexity.

About

Chant Tools

Access Gregorian Mass propers and ordinaries offline. This utility provides transcriptions from sources like Liber Usualis and GregoBase, with options to correct errors directly on the GregoBase platform.

Highlights
  • Offline Mass Propers
  • Gregorian Mass Ordinaries
  • Liber Usualis content
  • GregoBase transcriptions
  • Error correction via GregoBase
Features
Read full description

Offline Mass Propers This app is an offline version of the chant tools available at http://bbloomf.github.io/jgabc/ It is mostly intended to be useful for containing the Gregorian Mass propers as well as the Gregorian Mass ordinaries as found in the Liber Usualis, and transcribed on GregoBase (http://gregobase.selapa.net) and there may be some mistakes in the chant. If you notice any, they can be corrected in GregoBase (if you go to http://bbloomf.github.io/jgabc/propers.html and find the chant with the mistake, you can click the link above the chant on the left side to get to the GregoBase version of the chant, and edit it there to fix it, or request that it be fixed.)

Screenshots

MIDI Opener4 screens
Chant Tools3 screens

Verdict

The call

The clearest difference is in-app purchases: Chant Tools at none against MIDI Opener's 13. Chant Tools also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.6). MIDI Opener's advantage is review sentiment (64% vs 42%) and update cadence (every 10 days vs every 3 weeks). On price, rating, ratings volume 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. MIDI Opener sells 13 one-off in-app purchases. Chant Tools asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 3.9 for MIDI Opener against 3.9 for Chant Tools. Both are backed by a comparable volume of ratings — 85 and 32 respectively. Written reviews are what separate them: 64% of MIDI Opener's written reviews are positive against 42% of Chant Tools's.

UpkeepUpdate frequency

MIDI Opener ships an update every 10 days, Chant Tools every 3 weeks. The most recent releases landed on September 23, 2026 and September 9, 2026 respectively.

Scorecard6 real differences · 4 level
MIDI Opener versus Chant Tools: the parameters behind the verdict, then further details
ParameterMIDI OpenerChant Tools
PriceFreeFree
Rating3.9 (85 ratings) — better3.9 (32 ratings)
Positive reviews64.5% of reviews — better41.7% of reviews
Number of ratings85 — better32
Update frequencyEvery 10 days — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.0 — better
Further details — not scored
Size334 MB38 MB
Age rating4+4+
DeveloperMartianRover, LLCBenjamin Bloomfield

Customer experience

MIDI Opener

All ratings81 ratings
Positive72.8%
Neutral8.6%
Negative18.5%
Written reviews76 reviews
Positive64.5%
Neutral11.8%
Negative23.7%

Chant Tools

All ratings32 ratings
Positive65.6%
Neutral25.0%
Negative9.4%
Written reviews12 reviews
Positive41.7%
Neutral33.3%
Negative25.0%

Bugs and requests

MIDI Opener

Reported bugs

15 issues
  • Sustained notes are treated as staccato notes.
  • Cuts off the beginning of the song.
  • Kicked out of the app when clicking on another SoundFont.
  • Crashes when changing SoundFonts (iOS 26).
  • Bass drum is too quiet for metal music.
Show 10 more
  • Changing key option breaks songs.
  • App crashes on startup.
  • Randomly playing a single track only.
  • Skipping individual notes when too many are playing.
  • New update not working, won't play audio or understand certain instruments.
  • Google Drive method does not work.
  • Download button does nothing.
  • Skips a lot of notes.
  • No sound, plays silence.
  • Scrolling bar with no sound.

Requested features

18 requests
  • Adjust individual track volumes
  • Zoom in/out
  • Select region to play
  • Export features (WAV, MP3, FLAC)
  • Playlist functionality
Show 13 more
  • Library structure with nested folders
  • AUV3 plug-in support
  • IAA with audio hosts
  • Switchable color schemes
  • Spectrum editor/video export
  • Save MIDI soundfiles as MP3
  • More SoundBanks
  • Tempo control
  • Transpose option
  • Custom SoundFont support
  • Local storage/in-app folder
  • Background play
  • Option to play once (no loop)

Chant Tools

Not enough reviews yet to summarise bugs or requests.

In-app purchases

13 purchases

MIDI Opener

One-time13
  • Tip$0.99
  • Full Upgrade Discount$0.99
  • Remove Ads$1.99
Show 10 more
  • Change Tempo$1.99
  • Change Tempo and Key$1.99
  • All Access Upgrade$2.99
  • Track Controls$2.99
  • Super Tip$4.99
  • MIDI Out$4.99
  • Practice Pack$4.99
  • Full Upgrade$4.99
  • Premium Upgrade$4.99
  • All Access$7.99
None

Chant Tools

No in-app purchases

Questions

Is MIDI Opener free?
MIDI Opener is free to download, with in-app purchases available.
Is Chant Tools free?
Chant Tools is free to download, with no in-app purchases.
Which has better reviews, MIDI Opener or Chant Tools?
MIDI Opener is rated higher. MIDI Opener averages 3.9 out of 5 from 85 ratings, while Chant Tools averages 3.9 from 32 ratings.
Do MIDI Opener or Chant Tools have ads?
MIDI Opener shows ads; Chant Tools does not.
Which is updated more often, MIDI Opener or Chant Tools?
MIDI Opener ships an update every 10 days, and Chant Tools every 3 weeks. Most recently, MIDI Opener was updated on September 23, 2026 and Chant Tools on September 9, 2026.

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