Comparison

ScalePlay vs Wormhole

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

Head to head
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

About

Wormhole

Features
Read full description

Wormhole turns any sound you have into music you made. Drop in a clip — a video from your camera roll, a voice memo, a file, or something you hum into the mic. Wormhole listens to it, finds the tempo and the key on its own, and chops it into slices you can play. From there you are one tap away from a beat. FIVE INSTRUMENTS, ONE SCREEN Drums, 808, keys, your chopped clip, and a lead — all on one page. Tap a row to open its notes and draw them straight in. There is no edit mode to learn and no menu tree to climb. If you can tap, you can write a pattern. EVERY NOTE IS IN KEY Wormhole knows what key your project is in and keeps every instrument inside it. You can't place a wrong note. Change the key later and your melodies move with it — the app remembers the scale degree, not the absolute pitch. THE WORMHOLE Send any sound into the Wormhole and it comes back out in your key. Freeze a single grain into a pad. Smear a vocal into a choir. Stutter a snare into a fill that was never played. It is a scale-locked granular bus, and it is the reason the app is called what it is called. CHOP IT YOUR WAY Slice on transients, slice on the grid, or cut it by hand — tap the waveform to add a cut, drag a dot to move one. Pick a part of a long clip and chop only that. Every slice gets its own pitch, filter, and length. STUCK? PRESS FLIP One button writes a whole beat — drums, bass, chords, melody, all in your key, all editable. Press it until something grabs you, then make it yours. LOOPS BECOME A SONG Build up to four versions of every instrument, then place them on a timeline. Drag a block's edge to repeat it. That is the entire arrangement view. POST IT Export a 1080x1920 vertical video with a reactive visual, ready to go straight to your feed. Or take M4A for other apps and 24-bit WAV for your DAW. BUILT PROPERLY Real-time audio engine written from scratch. No login, no account, no cloud, no tracking — your projects live on your phone. Works fully offline. Something you already have is a beat. It just needs chopping. https://wormhole.aimoxyz.xyz/terms

Screenshots

Wormhole4 screens

Verdict

The call

The clearest difference is price: Wormhole at Free against ScalePlay's $9.99. Wormhole also leads on update cadence (every 4 days vs every 3 months) and iOS requirement (17.0 vs 26.0). ScalePlay's advantage is in-app purchases (none vs 2). On ads 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

Wormhole is free to download; ScalePlay costs $9.99 up front. Wormhole sells 2 in-app purchases, starting at $2.99 per month. ScalePlay asks for nothing beyond the download.

UpkeepUpdate frequency

ScalePlay ships an update every 3 months, Wormhole every 4 days. The most recent releases landed on September 24, 2026 and October 16, 2026 respectively.

Scorecard4 real differences · 6 level
ScalePlay versus Wormhole: the parameters behind the verdict, then further details
ParameterScalePlayWormhole
Price$9.99Free — better
Rating4.9 (10 ratings) — better—
Positive reviews71.4% of reviews—
Number of ratings10 — better—
Update frequencyEvery 3 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPadiPhone, iPad — better
Requires iOS26.017.0 — better
Further details — not scored
Size14 MB22 MB
Age rating4+4+
DeveloperRoGame SoftwareMoritz Maximilian Fricke

In-app purchases

None

ScalePlay

No in-app purchases

2 purchases

Wormhole

Subscriptions2
  • Wormhole Pro Monthly$2.991 Month
  • Wormhole Pro Yearly7 Days trial$19.991 Year

Questions

Is ScalePlay free?
ScalePlay costs $9.99, with no in-app purchases.
Is Wormhole free?
Wormhole is free to download, with in-app purchases available.
Do ScalePlay or Wormhole have ads?
Neither ScalePlay nor Wormhole shows ads.
Which is updated more often, ScalePlay or Wormhole?
ScalePlay ships an update every 3 months, and Wormhole every 4 days. Most recently, ScalePlay was updated on September 24, 2026 and Wormhole on October 16, 2026.

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