Comparison

ScalePlay vs resonatedo

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

Generative, not AI. ScalePlay turns your chord changes, scale choices and melodic patterns into intricate ostinatos, textures and lines, and every note follows from a decision you made. Nothing is trained on anyone else's music, nothing is predicted, and the same song plays back exactly the same way every time. The structure is yours, it travels with your song file and your MIDI export, and when a label or distributor asks how a part was made, you can show them. Enter a progression as chord symbols, give each harmony a chord scale, and choose a melodic pattern: thirds, fourths, broken sequences, or a figure you draw into the pattern matrix yourself. ScalePlay runs that pattern through every harmonic region of the song. Because the pattern steps through the scale rather than a chromatic grid, every note belongs to the scale you chose, and the stepwise motion creates a second layer of implied harmony above the changes: a shimmer of shifting upper-structure color you would rarely arrive at by hand. ScalePlay feeds your DAW directly. It drives your own instruments over virtual MIDI, stays in tempo with Ableton Link, and exports standard MIDI files when you want the notes on your timeline to edit. On the Mac it sits in a compact window beside your session, a companion to the DAW rather than another workstation to learn. There is no meter in the conventional sense. Pattern length and the number of pitch events per harmonic region are independent, so 13 against 27 sounds as convincing as 4 against 6. Layered under a regularly metered track, those cycles drift in and out of phase and produce polymetric textures that keep evolving across a long cue. Count-ins can feel unusual as a result; that is a consequence of the design. When the A section works, the B section is often one tap away. Any song can be mirrored vertically and horizontally, giving you inversion and retrograde, transformations composers have relied on for centuries, and a mirrored pattern often holds up as contrasting material on its own. Include or exclude the low, middle and high ranges to carve out a bass line, an inner voice or a top line. As the pattern passes through them, each range speaks only fragments of the phrase, and the ear hears implied polyphony with rhythms of its own. Pattern lock keeps the figure in one register as the harmony moves, like switching voice leading on and off. Lock a finished song against accidental edits; mirrors and ranges stay available during playback. If your iPad is already part of the band's rig, ScalePlay becomes a bandmate. Join the Ableton Link session and it plays bass lines, ostinatos and textures in tempo with everyone else, through your own synths. TouchPlay turns every chord of a song into a tile: tap to start, tap another to switch on the spot mid-pattern, or leave one running to loop a harmony indefinitely. Nothing has to happen in order, so you can vamp until the solo ends and call up the bridge when the singer does. Ranges, mirrors and pattern lock all swap live inside TouchPlay, and against a drummer playing straight time, ScalePlay's free cycles drift against the beat and keep the texture moving. Over a dozen example songs are included to play, take apart and rebuild, so the learning curve is short. If ScalePlay gives you one idea that finishes one cue or makes it into one set, it has paid for itself many times over. This purchase allows you to install ScalePlay on your iPhone, Mac, iPad or all of them, since each device plays its own role. Your Mac or iPad is the workbench, with Ableton Link and MIDI file export. The unfolded iPhone Duo gives you the full interface on the go. On any iPhone, ScalePlay is your pocket companion: audition your songs, try mirrors and ranges, even sketch a new song while waiting in line.

About

resonatedo

This audio effect app allows for microtonal music creation with two independent resonator banks. Each resonator offers customizable pitch, volume, and modulation, with advanced filter controls and a mix slider for signal blending. It supports external MIDI input and features a detailed UI with multiple keyboard options.

Highlights
  • Dual microtonal resonator banks
  • Independent pitch, volume, and modulation control
  • Advanced filter and color parameters
  • Detailed keyboard UI with note information
  • MIDI input support
  • Mix control for dry/processed signal
Features
Read full description

resonatedo is a microtonal resonator bank audio effect for iOS and macOS. It contains two sets of resonators controlled by separate keyboards. Each resonator has independent pitch (set by EDO division value of the keyboard), volume and modulation. Each resonator is a delay with feedback that contains lowpass + allpass and bandpass filters. Each set has a common "color" parameter that changes balance between these filter sets in each single resonator. The "mix" control allows crossfade from dry to fully processed signal. UI features two independent keyboards with: • 4 – 72 keys (voices, steps) per octave, each with its own ring modulator • maximum polyphony equal to the number of voices; max polyphony is 144 voices • 1 – 4 octave range, covering the frequency range of about 8 – 4200 Hz • display with note number (from C), note name, frequency (in Hz), and deviation from 12-TET (in cents) • two sections per keyboard: upper for non-sustained notes, gliding, and velocity; lower for sustained notes and modulation rate • mute button to stop/start all sound • delete/panic button to erase all notes • glide button for smooth sweeps across keyboard frequency range • modulation on/off button • slider to set initial velocity and modulation levels • slider to change velocity and modulation rates for all notes on the keyboard proportionally and to show current velocity and mod rate levels • button to toggle keyboard visibility. resonatedo supports MIDI input from external sources to control each keyboard independently.

Screenshots

ScalePlay4 screens
resonatedo3 screens

Verdict

The call

The clearest difference is update cadence: ScalePlay at every 3 months against resonatedo's every 40 months. resonatedo's advantage is price ($3.99 vs $9.99) and iOS requirement (15.0 vs 26.5). On rating, review sentiment, ratings volume and ads 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

ScalePlay costs $9.99 and resonatedo $3.99 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 — 4.9 for ScalePlay against 5.0 for resonatedo. Both are backed by a comparable volume of ratings — 10 and 8 respectively. Written reviews are what separate them: 71% of ScalePlay's written reviews are positive against 75% of resonatedo's.

UpkeepUpdate frequency

ScalePlay ships an update every 3 months, resonatedo every 40 months. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

Scorecard3 real differences · 7 level
ScalePlay versus resonatedo: the parameters behind the verdict, then further details
ParameterScalePlayresonatedo
Price$9.99$3.99 — better
Rating4.9 (10 ratings)5.0 (8 ratings) — better
Positive reviews71.4% of reviews75.0% of reviews — better
Number of ratings10 — better8
Update frequencyEvery 3 months — betterEvery 40 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, MaciPhone, iPad, iPod, Mac — better
Requires iOS26.515.0 — better
Further details — not scored
Size159 MB11 MB
Age rating4+4+
DeveloperRoGame SoftwareAlexey Nadzharov

Customer experience

ScalePlay

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

resonatedo

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive75.0%
Neutral25.0%
Negative0.0%

In-app purchases

None

ScalePlay

No in-app purchases

None

resonatedo

No in-app purchases

Questions

Is ScalePlay free?
ScalePlay costs $9.99, with no in-app purchases.
Is resonatedo free?
resonatedo costs $3.99, with no in-app purchases.
Which has better reviews, ScalePlay or resonatedo?
resonatedo is rated higher. ScalePlay averages 4.9 out of 5 from 10 ratings, while resonatedo averages 5.0 from 8 ratings.
Do ScalePlay or resonatedo have ads?
Neither ScalePlay nor resonatedo shows ads.
Which is updated more often, ScalePlay or resonatedo?
ScalePlay ships an update every 3 months, and resonatedo every 40 months. Most recently, ScalePlay was updated on November 11, 2026 and resonatedo on November 3, 2026.

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