Comparison

Orbital Harp vs Harmony Lab

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

Head to head
About

Orbital Harp

Create unique orbital symphonies by tapping to generate planets that play notes as they orbit suns. Experience ever-changing soundscapes that blend chaos and calm, with a variety of instruments and visual effects.

Highlights
  • Generative music creation
  • 17 unique instruments
  • Beautiful nebula visuals
  • Multiple musical scales
  • Configurable physics and effects
  • Background playback
  • MIDI support (Premium)
Features
Read full description

Tap to create planets. Watch them orbit suns and play notes as they pass through zones. Sounds weave in and out as planets speed up, slow down, collide, and interact. The music shifts between chaos and calm, never repeating the same way twice. Features: • 17 instruments: piano, harp, kalimba, pads, bells, theremin, and more • Beautiful visuals: nebula backgrounds, glowing planets with particle trails, dynamic lighting • Multiple scales: Major, Minor, Pentatonic, Dorian, Blues, and more • Grid and harp layouts: choose how zones are arranged • Keys or strings triggering: change how planets trigger notes • Autoharp mode: toggle or hold notes to control what's playable • Paint mode: assign specific notes to each zone, including wildcards • Per-planet control: assign different instruments, scales, and octave ranges to each planet • Built-in effects: filter, delay, and reverb with real-time control • Saves: build a library of evolving compositions • Background playback: keeps making music when you switch apps • Configurable physics: toggle wall bounces, collisions, and collision sounds MIDI Support (Premium): • Multi-timbral output with 16 channels + X/Y position CC per planet • MPE mode with per-note pitch bend, slide, and pressure • Route to any MIDI-compatible app (AUM, GarageBand, DAWs, synths) • Per-planet MIDI routing: assign MIDI channels and MPE controls independently Perfect for: • Ambient soundscapes that evolve on their own • Live performance and improvisation • Meditation, relaxation, and creative flow • Generative music experiments • Weird beats and drones No subscription. No ads. Just you and the universe.

About

Harmony Lab

Features
Read full description

Create chord progressions and hear them come to life. Harmony Lab is built for exploring harmony in a way that feels clear and immediate. It gives you a space to build progressions, shape how they are played, and understand how everything connects. You can create progressions in multiple ways. Build them manually, generate them from scales, or follow harmonic relationships. Each approach leads to the same goal: turning ideas into sound quickly. Every chord you add is playable instantly. You hear how it fits, how it moves, and how it feels in context. This makes it easy to experiment, adjust, and refine your ideas without breaking flow. Playback is fully customizable. Choose how chords are played using different styles such as up, down, alternating patterns, or more dynamic variations. You can control octave placement and spread notes across multiple octaves to shape the depth of the sound. Rhythm is part of the process. Use built-in patterns or create your own to control how chords are triggered over time. This lets you move beyond static playback and explore groove, timing, and feel. Harmony Lab also gives you control over the details. Adjust note density, introduce probability to create variation, and add humanization to make playback feel more natural. These small changes can completely transform how a progression sounds. You can hear everything across multiple instruments. Switch between piano, guitar, strings, and more to explore different textures and directions. Each instrument gives a new perspective on the same harmonic idea. The interface keeps things focused. You add chords, shape how they are played, and hear the result instantly. Key Features: • Build chord progressions manually/from scales/Using Functional Harmony/Using a text description • Multiple playback styles and patterns • Control octave, range, and note spread • Adjust timing, density, and variation • Add humanization for a more natural feel • Multi-instrument playback • Real-time feedback while editing Harmony Lab works for writing, practice, and exploration. It helps you hear harmony more clearly and turn simple ideas into something more expressive. You explore, listen & create - That’s the core idea behind Melodic Mind. Let music feel natural again. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://melodic-mind.com/privacy-policy

Screenshots

Orbital Harp4 screens
Harmony Lab4 screens

Verdict

The call

The clearest difference is update cadence: Orbital Harp at every 5 days against Harmony Lab's every 2 months. On price, ads, 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. Orbital Harp sells 1 one-off in-app purchase and Harmony Lab sells 6 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Orbital Harp ships an update every 5 days, Harmony Lab every 2 months. Both last shipped on November 5, 2026.

Scorecard1 real difference · 9 level
Orbital Harp versus Harmony Lab: the parameters behind the verdict, then further details
ParameterOrbital HarpHarmony Lab
PriceFreeFree
Rating5.0 (7 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings7 — better—
Update frequencyEvery 5 days — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.6
Further details — not scored
Size20 MB33 MB
Age rating4+4+
DeveloperStatic Void Studio, LLCSean Ray Dvir

In-app purchases

1 purchases

Orbital Harp

One-time1
  • Premium Upgrade$4.99
6 purchases

Harmony Lab

Subscriptions6
  • No Ads$1.991 Month
  • Full Access3 Days trial$4.991 Month
  • Melodic Mind Standard Monthly3 Days trial$7.991 Month
Show 3 more
  • Melodic Mind Pro Monthly3 Days trial$11.991 Month
  • Melodic Mind Standard Yearly3 Days trial$59.991 Year
  • Melodic Mind Pro Yearly3 Days trial$89.991 Year

Questions

Is Orbital Harp free?
Orbital Harp is free to download, with in-app purchases available.
Is Harmony Lab free?
Harmony Lab is free to download, with in-app purchases available.
Do Orbital Harp or Harmony Lab have ads?
Neither Orbital Harp nor Harmony Lab shows ads.
Which is updated more often, Orbital Harp or Harmony Lab?
Orbital Harp ships an update every 5 days, and Harmony Lab every 2 months. Most recently, Orbital Harp was updated on November 5, 2026 and Harmony Lab on November 5, 2026.

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