Comparison

Orbital Harp vs Digital Worms Attack

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

Digital Worms Attack

Create music with analog-style synths, a drum machine, and a microphone sampler. Sequence beats, add effects, record your sessions, and export your creations as WAV files.

Highlights
  • Dual analog-style synth voices
  • 808-style drum machine
  • Sampled drum kit
  • Microphone sampler
  • Step sequencer with motion sequencing
  • Master effects chain
  • Session recording and WAV export
Features
Read full description

DIGITAL WORMS ATTACK is a tribute to Mr. Oizo's classic album ANALOG WORMS ATTACK and the Korg MS-20 that helped shape its sound. Two analog-style synth voices, an 808-flavored drum machine, a sampled drum kit, and a microphone sampler — all driven by a step sequencer with per-step parameter locks. Stack effects, record your jam, export a WAV. FEATURES • Dual monosynth with MS-20-style filter • 808-style drum voices (kick, snare, hat, clap, cowbell) • Sample-based drum kit • Microphone sampler — record and play back your own sounds • Step sequencer with motion sequencing • Master effects chain • Session recording and WAV export Made as an homage to Mr. Oizo and ANALOG WORMS ATTACK. Have fun.

Screenshots

Orbital Harp4 screens
Digital Worms Attack4 screens

Verdict

The call

The clearest difference is in-app purchases: Digital Worms Attack at none against Orbital Harp's 1. Orbital Harp's advantage is ratings volume (6 vs 1). On price, rating, 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

Both are free to download. Orbital Harp sells 1 one-off in-app purchase. Digital Worms Attack asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Orbital Harp against 5.0 for Digital Worms Attack. That said, the two scores are not equally well evidenced: Orbital Harp has 6 ratings behind it against 1, so its average is the more settled of the two.

Scorecard3 real differences · 7 level
Orbital Harp versus Digital Worms Attack: the parameters behind the verdict, then further details
ParameterOrbital HarpDigital Worms Attack
PriceFreeFree
Rating5.0 (6 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings6 — better1
Update frequencyEvery 5 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size20 MB3 MB
Age rating4+4+
DeveloperStatic Void Studio, LLCSamuel Rulon-Miller

Customer experience

Orbital Harp

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Digital Worms Attack

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Orbital Harp

One-time1
  • Premium Upgrade$4.99
None

Digital Worms Attack

No in-app purchases

Questions

Is Orbital Harp free?
Orbital Harp is free to download, with in-app purchases available.
Is Digital Worms Attack free?
Digital Worms Attack is free to download, with no in-app purchases.
Which has better reviews, Orbital Harp or Digital Worms Attack?
Orbital Harp and Digital Worms Attack are both rated 5.0 out of 5 on the App Store, from 6 and 1 ratings respectively.
Do Orbital Harp or Digital Worms Attack have ads?
Neither Orbital Harp nor Digital Worms Attack shows ads.

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