Comparison

BComposer Scales vs Metroplan Music Studio

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

Head to head
About

BComposer Scales

Explore musical scales, chords, and harmony with an interactive visual tool. Understand note relationships, experiment with voicings, and discover new harmonic ideas. Ideal for musicians, students, and educators.

Highlights
  • Interactive visual scale and chord exploration
  • Scale Rule System for note relationships
  • Chord voicings, extensions, and inversions
  • Library of hundreds of scales
  • Velocity-sensitive keyboard
  • Harmonic Progression System
Features
Read full description

BComposer Scales - Scales, Chords & Harmony BComposer Scales is an interactive visual tool for exploring musical scales, chords, and tonal harmony. Designed for composers, producers, musicians, students, and educators, it helps you understand how notes, scales, chords, and harmonic structures work together. Its innovative Scale Rule System highlights the notes within each scale and reveals their relationship to chords, making it easier to explore melodic harmonization, chord voicings, extensions, and inversions. Select a key and instantly explore its scale degrees, available chords, chord tones, voicings, inversions, and extensions. See the relationship between scales and chords while playing and experimenting directly on the keyboard. EXPLORE HARMONY VISUALLY * Library of hundreds of scales organized by the Circle of Fifths and Fourths * Relative and parallel scales for deeper harmonic understanding * Scale degree identification and chord tone visualization * Chord voicings, extensions, and inversions * Up to 8 octaves for an expanded musical range * Treble and bass clefs for different musical registers * Velocity-sensitive keyboard for a more expressive playing experience * Harmonic Progression System based on a simple rule for applying scales to melodies * Sound controls to customize your playing experience PLAY, PRACTICE AND COMPOSE Use BComposer Scales to study music theory, practice, compose, or experiment with harmony. Explore different keys, try chord progressions, hear harmonic relationships, and develop your own musical ideas directly from your device. FREE VERSION * Access to Piano and Guitar * Major and Natural Minor scales with their chord progressions * Integrated scale and chord visualization * Relative and parallel scales * Grand Piano Splendor and Grand Piano sounds * Access to the included sound library * Chord extensions and inversions PRO VERSION - LIFETIME ACCESS Unlock the complete BComposer Scales experience and advanced harmonic tools: * All scales and modes * Scale to chord relationships * Chord voicings, chord extensions, and inversions * Advanced and exotic scales, including: Natural Major, Natural Minor, Melodic Minor, Harmonic Minor, Harmonic Major, Natural Pentatonic, Kumoi Pentatonic, Hirojoshi Pentatonic, Blues, Pelog, Suspended Dominant, Locrian Natural 7, Ionian Flat 5, Enigmatic, Enigmatic Minor, Neapolitan Minor, Neapolitan Major, Hungarian Minor, Hungarian Major, Spanish Eight-Tone, Bebop Locrian Natural 2, Bebop Dominant, Bebop Dorian, Bebop Major, Compound II, Persian, Whole-Half Diminished, Half-Whole Diminished, Augmented, and Whole Tone * Relative and parallel scales * Full access to the sound library A POWERFUL TOOL FOR MUSICIANS AND EDUCATORS BComposer Scales brings scales, chords, voicings, and harmonic progressions together in a clear, visual, and practical environment. Use it to compose, practice, study, teach, or experiment with new harmonic ideas. [www.bcomposer.com](http://www.bcomposer.com) ONE MAN BAND STUDIOS S.A.S

About

Metroplan Music Studio

Read full description

Metroplan is the app every musician wishes existed. Not just a metronome. A complete system for serious musicians: professional tools, real practice organization, a community that keeps you accountable, and the mental clarity to perform at your best. All in one place. THE TOOLS Professional metronome with precise BPM control, subdivisions, time signatures and progressive tempo ramps. The accuracy your practice demands. Chromatic tuner for any instrument — guitar, violin, cello, piano, flute, voice and more. Built-in reference piano with real sound. Customizable A4 reference in Pro. THE ORGANIZATION Structured practice planner to organize pieces, passages and goals by session. Daily targets, integrated calendar and real progress tracking week by week. Most musicians don't lack talent. They lack focus and structure. Metroplan keeps you accountable — set your goals, track every piece, measure your progress. The results speak for themselves. THE COMMUNITY Connect with other musicians: create or join practice groups, share your progress, and send kudos to keep each other motivated. Group rankings and challenges turn solo practice into shared momentum. Your space, your rules — block anyone at any time, report content that shouldn't be there, and group creators can remove members. Built to keep practice groups a place you actually want to be in. THE WELLBEING Calma: guided, free and silent meditation sessions designed for musicians. To focus before practicing or recover afterwards. Because musical performance starts in the mind. THE TRACKING Weekly and monthly practice stats. Floating study widget that tracks your real practice time even when using other apps. Streaks, completed goals and progress on every piece. FREE & PRO Free: full metronome, tuner, practice planner, metrics and community features. Pro: advanced tuner with custom A4, premium meditations and multi-device sync. The only music practice app in Spanish and English. Built by a musician, for musicians. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

BComposer Scales4 screens
Metroplan Music Studio4 screens

Verdict

The call

The clearest difference is ads: BComposer Scales at none against Metroplan Music Studio's shown. Metroplan Music Studio's advantage is update cadence (every 3 weeks vs every 5 months) and iOS requirement (16.0 vs 18.2). On price, 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

Both are free to download. BComposer Scales sells 1 one-off in-app purchase and Metroplan Music Studio sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

BComposer Scales ships an update every 5 months, Metroplan Music Studio every 3 weeks. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
BComposer Scales versus Metroplan Music Studio: the parameters behind the verdict, then further details
ParameterBComposer ScalesMetroplan Music Studio
PriceFreeFree
Rating3.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.216.0 — better
Further details — not scored
Size114 MB56 MB
Age rating4+4+
DeveloperONE MAN BAND STUDIOS SASAlejandro Mateo Gonzalez

In-app purchases

1 purchases

BComposer Scales

One-time1
  • Premium Access$9.99
4 purchases

Metroplan Music Studio

Subscriptions4
  • Metroplan Pro7 Days trial2 variants$2.991 Month
  • Metroplan7 Days trial2 variants$2.991 Month
  • Metroplan Pro7 Days trial5 variants$24.991 Year
Show 1 more
  • Metroplan7 Days trial$24.991 Year

Questions

Is BComposer Scales free?
BComposer Scales is free to download, with in-app purchases available.
Is Metroplan Music Studio free?
Metroplan Music Studio is free to download, with in-app purchases available.
Do BComposer Scales or Metroplan Music Studio have ads?
Metroplan Music Studio shows ads; BComposer Scales does not.
Which is updated more often, BComposer Scales or Metroplan Music Studio?
BComposer Scales ships an update every 5 months, and Metroplan Music Studio every 3 weeks. Most recently, BComposer Scales was updated on November 1, 2026 and Metroplan Music Studio on October 31, 2026.

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