Comparison

JamEngine vs Chartist Music Charts

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

Head to head
About

JamEngine

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JamEngine is a real-time music generation app that puts a full backing band in your pocket. Choose from 15 musical styles, pick your key and tempo, and JamEngine instantly creates authentic, genre-appropriate arrangements, complete with MIDI drums, bass, guitar, piano, brass, and woodwind instruments. Whether you're a guitarist looking for a rhythm section to practice over, a songwriter sketching out chord progressions, a jazz player working on improvisation, or a producer hunting for inspiration, JamEngine gives you a responsive, endlessly variable musical companion. 15 STYLES TO CHOOSE FROM Rock · Hard Rock · Classic Rock · Metal · Pop · Ballad · Blues · Slow Blues · Jazz Swing · Jazz Ballad · Funk · Bossa Nova · Reggae · Country · Lo-fi Each style comes with genre-authentic drum patterns, bass lines, guitar voicings, keyboard parts, and horn arrangements. 12 INSTRUMENTS Build your arrangement from a roster of 12 instruments, each with realistic General MIDI sounds: • Drums · Bass · Electric Guitar · Acoustic Guitar • Piano · Organ · Strings • Trumpet · Trombone · Alto Sax · Tenor Sax · Clarinet Mix and match any combination. Each instrument has independent volume, mute, solo, pan, density and 11 variation levels to control the complexity and character of its part. SMART CHORD PROGRESSIONS Build chord progressions using the grid editor or the interactive Circle of Fifths, a visual tool that highlights diatonic chords in your selected key, so you can see at a glance which chords belong together. Start from scratch, or load one of the built-in templates: I-IV-V, I-V-vi-IV, ii-V-I, 12-Bar Blues, Jazz Turnaround, and more. Choose from 18 chord types including major, minor, seventh, diminished, augmented, sus, and extended chords. FLEXIBLE TIME & KEY Play in any of 7 time signatures, 2/4, 3/4, 4/4, 5/4, 6/8, 7/8, and 12/8, with BPM from 40 to 300. Tap tempo to match a song. Select any of the 12 keys in major or minor. Change key mid-session and your chord progression transposes automatically to preserve harmonic relationships. VARIATION RANDOMIZER Enable the variation randomizer and JamEngine will shuffle instrument variations at musically appropriate boundaries, every 4 or 8 bars, keeping your practice sessions fresh and unpredictable without you lifting a finger. EXPORT YOUR SESSIONS Capture your jam as a WAV, M4A, or multitrack MIDI file. Use export to bring your arrangements into your DAW for further production. SONGBOOK Save your favorite sessions, style, key, tempo, chord progression, and instrument setup to your personal Songbook. Load them instantly to pick up where you left off. CUSTOM SOUNDFONTS Import your own SF2 SoundFont files to customize the sound of every instrument. FREE TO START, PRO TO UNLOCK EVERYTHING JamEngine is free with 4 styles (Rock, Metal, Jazz Swing, Lo-fi), 3 song saves, and all playback features. Upgrade to JamEngine Pro for a one-time purchase to unlock all 15 styles, unlimited song saves, and full export capabilities.

About

Chartist Music Charts

Features
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Some chord charts tell you what to play. Chartist also shows you when to play it. Chartist combines chords, rhythmic notation and melody in one clean, phone-friendly chart. Create songs quickly, read them comfortably on stage, and keep your entire set close at hand. MAKE CHARTS THAT FEEL MUSICAL - Build songs bar by bar with an intuitive, musician-first editor - Add chords, rhythm slashes, rests, pushes, repeats, endings and rehearsal marks - Write melody in treble or bass clef wherever notation is useful - See every change immediately as you edit READY FOR REHEARSAL AND THE STAGE - Open a focused view made for reading while you play - Transpose the entire chart for any singer or instrument - Organize songs into playlists and setlists - Search and reorder a set in seconds - Export and share charts as Chartist files, PDF or PNG YOUR MUSIC, WITH OR WITHOUT AN ACCOUNT Chartist is local-first. Create, edit, import, organize, perform and export from your own library without signing in. Chartist Sync is an optional subscription for musicians who want cross-device sync and shared playlists. It helps bands, teachers and working groups stay on the same page while the core chart library remains fully usable on your device. Whether you are preparing a gig, teaching a student, collecting standards or arranging for a new lineup, Chartist gives every song a clear, practical home. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

JamEngine4 screens
Chartist Music Charts4 screens

Verdict

The call

The clearest difference is price: JamEngine at Free against Chartist Music Charts's $11.99. Chartist Music Charts's advantage is iOS requirement (15.0 vs 18.6). On update cadence, ads, in-app purchases 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

JamEngine is free to download; Chartist Music Charts costs $11.99 up front. JamEngine sells 1 one-off in-app purchase and Chartist Music Charts sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

JamEngine ships an update every 5 days, Chartist Music Charts every 4 days. Both last shipped on October 24, 2026.

Scorecard2 real differences · 4 level
JamEngine versus Chartist Music Charts: the parameters behind the verdict, then further details
ParameterJamEngineChartist Music Charts
PriceFree — better$11.99
Update frequencyEvery 5 daysEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.615.0 — better
Further details — not scored
Size149 MB15 MB
Age rating4+4+
DeveloperOrcun KeskinKRISTIAN SVERRE ARNTSEN

In-app purchases

1 purchases

JamEngine

One-time1
  • JamEngine Pro$8.99
1 purchases

Chartist Music Charts

Subscriptions1
  • Chartist Sync Monthly$1.991 Month

Questions

Is JamEngine free?
JamEngine is free to download, with in-app purchases available.
Is Chartist Music Charts free?
Chartist Music Charts costs $11.99, and also offers in-app purchases.
Do JamEngine or Chartist Music Charts have ads?
Neither JamEngine nor Chartist Music Charts shows ads.
Which is updated more often, JamEngine or Chartist Music Charts?
JamEngine ships an update every 5 days, and Chartist Music Charts every 4 days. Most recently, JamEngine was updated on October 24, 2026 and Chartist Music Charts on October 24, 2026.

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