Comparison

CalmusPlayLite vs ScalePlay

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

Head to head
About

CalmusPlayLite

This app generates original, royalty-free music using AI based on user-selected parameters like location, zodiac sign, and color. It offers a unique way to create personalized soundtracks for various media or personal enjoyment.

Highlights
  • AI-powered music composition
  • Royalty-free music generation
  • Personalized music based on user input
  • Customizable parameters (location, zodiac, color, etc.)
  • Music for movies, TV shows, and games
  • Original compositions
Features
Read full description

CalmusPlay - Your Personal Composer - composes music based on you... CalmusPlay composes original and royalty free music using Artificial Intelligence - Music for movies, TV shows or Games - and music for your self. The core of CalmusPlay is the CalmusAI brain where the modern composing methods are programmed into the brain using Lisp programming language. NASA has historically used Lisp for artificial intelligence and autonomous systems, most notably in the 1990s Remote Agent project, the first AI system to control a spacecraft. CalmusPlay does not collect or use any musical material from the internet but creates new music based on the input from the user. CalmusPlay can compose thousands of royalty free music examples by combining geographical position , zodiac sign, complexity, interests, colour and speed. How it works: Select your geographical origin, zodiac sign, personality complexity, interests, favourite colour, speed of your music and press Play … CalmusPlay is a simple versions of MacOs program CalmusComposer

About

ScalePlay

This app generates intricate musical patterns and sequences using complex scale theory. It's a powerful tool for both music production and education, offering scale references, virtual instruments, and interactive playback features.

Highlights
  • Generates intricate ostinatos and sequences
  • Applies complex scale patterns
  • User-defined songforms and chord changes
  • Scale references for hundreds of scales
  • Nine virtual instruments and 128 sounds
  • Visualizes scale relations
  • Interactive playback with generated patterns
Features
Read full description

ScalePlay is a generative music app capable of producing the most intricate ostinatos and sequences by applying complex scale patterns over user defined songforms and chord changes. It can be used in music production and is also a fantastic tool for music education. It includes scale references for hundreds of scales, nine virtual instruments and 128 instrument sounds. Its unique set of features allows the musician to visualize scale relations and to play along with generated patterns. Modern musicians often practice playing scales according to organizing principles like thirds. What is meant by that is to play a scale tone, then its third, then the second scale tone, the third on top of that one and so forth. The exercise would result in the scale tones 1, 3, 2, 4, 3, 5, etc. Not an easy feat at first, because before even getting started, one has to know the base scale. Playing patterns through different keys and scale types finally is a demanding task even for advanced musicians. ScalePlay constructs patterns like these and much more complicated ones by using two simple grids. Grids have been around in music apps for years, but they are based on half-tone steps and include all available notes of the spectrum. That leaves one difficulty on the table, namely that of correctly identifying the notes of a scale. These grids also don’t easily allow for patterning as in our scale in thirds. So a different solution is called for and ScalePlay provides just that and so much more. In the application songs are used as metaphor to organize different scale types into a harmonic context. They are constructed with chords which in turn determine what scale types are available at a given time. During playback the app then cycles through these virtual chords or as with TouchPlay allows to call them up at will. This architecture is very helpful for superimposing ScalePlay patterns over existing pieces and even practicing improvising over changes. For practicing ScalePlay shows a pattern's progression on the built-in instrument and also provides a music notation reference. One can slow things down to need and play along. With the pattern lock feature all patterns can be kept in the same general vicinity. So instead of raising all scale tones when a base chord moves from C to G for example, patterns stay in place. This allows guitarists to practice scale patterns over changes while remaining in the same position. ScalePlay is also a fabulous generative music app. That is because of the magic that happens when these self-repeating scale structures are put in motion. Fantastic music occurs. Since ScalePlay supports virtual MIDI and can be recorded into any iOS based DAW. It also features TouchPlay for advanced looping. With TouchPlay scale structures can be looped endlessly and out of order. The TouchPlay environment is superimposed over ScalePlay's main interface and allows live switching between different scale types with the tap of a finger in continuous or full pattern mode. Of course ScalePlay supports multi-app multitasking as well as split-view and split-screen to make this feature even more useful. Instruments • Banjo, Bass, Cello, Double Bass, Guitar, Mandolin, Piano, Viola, Violin Some other Features: • 211 scale types • Virtual MIDI • Advanced looping with TouchPlay • Full general MIDI instrument library

Screenshots

CalmusPlayLite4 screens

Verdict

The call

The clearest difference is price: CalmusPlayLite at Free against ScalePlay's $9.99. CalmusPlayLite also leads on review sentiment (100% vs 71%) and device support (3 vs 1). ScalePlay's advantage is ratings volume (10 vs 1). On rating, update cadence, ads and in-app purchases 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

CalmusPlayLite is free to download; ScalePlay costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for CalmusPlayLite against 4.9 for ScalePlay. That said, the two scores are not equally well evidenced: ScalePlay has 10 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 100% of CalmusPlayLite's written reviews are positive against 71% of ScalePlay's.

UpkeepUpdate frequency

CalmusPlayLite ships an update every 4 months, ScalePlay every 3 months. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

Scorecard6 real differences · 4 level
CalmusPlayLite versus ScalePlay: the parameters behind the verdict, then further details
ParameterCalmusPlayLiteScalePlay
PriceFree — better$9.99
Rating5.0 (1 ratings) — better4.9 (10 ratings)
Positive reviews100.0% of reviews — better71.4% of reviews
Number of ratings110 — better
Update frequencyEvery 4 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS12.0 — better26.0
Further details — not scored
Size291 MB14 MB
Age rating4+4+
DeveloperErki-tonlist sfRoGame Software

Customer experience

CalmusPlayLite

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

ScalePlay

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive71.4%
Neutral28.6%
Negative0.0%

In-app purchases

None

CalmusPlayLite

No in-app purchases

None

ScalePlay

No in-app purchases

Questions

Is CalmusPlayLite free?
CalmusPlayLite is free to download, with no in-app purchases.
Is ScalePlay free?
ScalePlay costs $9.99, with no in-app purchases.
Which has better reviews, CalmusPlayLite or ScalePlay?
CalmusPlayLite is rated higher. CalmusPlayLite averages 5.0 out of 5 from 1 ratings, while ScalePlay averages 4.9 from 10 ratings.
Do CalmusPlayLite or ScalePlay have ads?
Neither CalmusPlayLite nor ScalePlay shows ads.
Which is updated more often, CalmusPlayLite or ScalePlay?
CalmusPlayLite ships an update every 4 months, and ScalePlay every 3 months. Most recently, CalmusPlayLite was updated on October 24, 2026 and ScalePlay on October 10, 2026.

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