Comparison

Music2.0 vs KeyJaan!

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

Head to head
About

Music2.0

Features
Read full description

Music Player

About

KeyJaan!

Features
Read full description

Your songs become the game. KeyJaan! is a chord-progression rhythm game that analyzes songs from your own music library โ€” right on your device. Pick a song, and its tempo, beats, bars and chord progression become a playable chart in seconds. No sheet music, no chart downloads. โ–  Three ways to play Plug in a MIDI keyboard and your real playing becomes the score Use the microphone to play with a piano or your voice (experimental) No instrument? Tap the beat and swipe the chords โ–  Music theory scores points 7th chords, slash chords, modulations, voice leading โ€” the more musical your playing, the higher the score. Harder songs multiply your points. Left hand rides the beat, right hand sings the melody. โ–  The crowd goes wild Ten audience characters react to your playing in real time. Nail a 7th and they'll actually hear it. โ–  Records that stack up Achievements, daily streaks, per-song best scores and rankings. Chase that S rank โ€” it's reserved for near-perfect play. โ–  6 demo songs included Original demo tracks are bundled and pre-analyzed, so you can play the moment you download. โ–  Private by design Analysis and scoring happen entirely on your device. Your songs never leave it. No data collection, no ads. FREE: 6 demo songs + analyze up to 5 of your own songs, with a 7-day full-feature trial (1-minute mode stays available afterwards). KEYJAAN PRO (one-time purchase): unlimited analysis + all play lengths. No subscription. Works with: MIDI keyboards (USB/Bluetooth) / your music library / audio files (mp3, m4a, wav and more) Note: DRM-protected streaming tracks (e.g. Apple Music subscription songs) cannot be analyzed.

Screenshots

Music2.02 screens
KeyJaan!4 screens

Verdict

The call

The clearest difference is in-app purchases: Music2.0 at none against KeyJaan!'s 1. KeyJaan!'s advantage is iOS requirement (17.0 vs 26.0). On price, ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. KeyJaan! sells 1 one-off in-app purchase. Music2.0 asks for nothing beyond the download.

Scorecard2 real differences ยท 4 level
Music2.0 versus KeyJaan!: the parameters behind the verdict, then further details
ParameterMusic2.0KeyJaan!
PriceFreeFree
Update frequencyEvery 10 daysโ€”
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPadiPhone, iPad, Mac โ€” better
Requires iOS26.017.0 โ€” better
Further details โ€” not scored
Size6 MB90 MB
Age rating4+4+
DeveloperNAGORA STUDIOS PRIVATE LIMITEDMamiko Tsukamoto

In-app purchases

None

Music2.0

No in-app purchases

1 purchases

KeyJaan!

One-time1
  • KeyJaan Pro$9.99

Questions

Is Music2.0 free?
Music2.0 is free to download, with no in-app purchases.
Is KeyJaan! free?
KeyJaan! is free to download, with in-app purchases available.
Do Music2.0 or KeyJaan! have ads?
Neither Music2.0 nor KeyJaan! shows ads.

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