Comparison

KeyMorph 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

KeyMorph

Features
Read full description

KeyMorph is the ultimate practice companion for anyone playing a transposing instrument. With a full‑sized, touch‑responsive piano keyboard and a simple dropdown menu, you can choose an available instrument and immediately see the adjusted note names rendered atop each key—no mental math required. KeyMorph helps you: Visualize transposition in real time, so you always know which piano key corresponds to your instrument’s written pitch. Switch instruments effortlessly—great for multi‑instrumentalists or band directors working with different sections. Build confidence by practicing scales, chords, and melodies in their concert‑pitch form while seeing exactly what to play on your instrument. Ideal for students, educators, and professionals alike, KeyMorph makes learning and performing transposed music intuitive, accurate, and fun. Instruments Supported: Piano Violin Oboe Alto Saxophone Soprano Saxophone Tenor Saxophone Baritone Saxophone Trumpet French Horn Clarinet More instruments to come!

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

KeyMorph4 screens
Digital Worms Attack4 screens

Verdict

The call

The clearest difference is iOS requirement: KeyMorph at 15.1 against Digital Worms Attack's 17.0. 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. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 8 level
KeyMorph versus Digital Worms Attack: the parameters behind the verdict, then further details
ParameterKeyMorphDigital Worms Attack
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 3 weeks—
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size31 MB3 MB
Age rating4+4+
DeveloperOmni DevsSamuel Rulon-Miller

In-app purchases

None

KeyMorph

No in-app purchases

None

Digital Worms Attack

No in-app purchases

Questions

Is KeyMorph free?
KeyMorph is free to download, with no in-app purchases.
Is Digital Worms Attack free?
Digital Worms Attack is free to download, with no in-app purchases.
Do KeyMorph or Digital Worms Attack have ads?
Neither KeyMorph nor Digital Worms Attack shows ads.

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