Comparison

FM Playground 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

FM Playground

Features
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FM Playground is an educational app designed for learning and experimenting with FM synthesis (Frequency Modulation Synthesis). Developed as part of the "2025 Swift Sound - Creative Coding for Computer Musicians" project at MARTE Lab, Department of Multimedia, Dongguk University, by Yeonho Kim, Taejun Kim, Seoyul Son, and Sookyung Yoon, with guidance from Gwangyu Lee. The app features multiple interactive views where users can manipulate sound in real time using touch gestures and iPhone sensors (gyroscope, compass, etc.). Key Features: - What is FM Synthesis?: Learn the fundamentals of FM synthesis with an interactive view. Adjust sliders to hear real-time modulation effects and explore complex timbres. - Gesture-based control of timbre, frequency, and volume across various interactive views. - Open-source code available for study, experimentation, and expansion.

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

FM Playground4 screens
Digital Worms Attack4 screens

Verdict

The call

The clearest difference is iOS requirement: Digital Worms Attack at 17.0 against FM Playground's 26.0. 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
FM Playground versus Digital Worms Attack: the parameters behind the verdict, then further details
ParameterFM PlaygroundDigital Worms Attack
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 3 days—
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.017.0 — better
Further details — not scored
Size19 MB3 MB
Age rating4+4+
DeveloperGwangyu LeeSamuel Rulon-Miller

In-app purchases

None

FM Playground

No in-app purchases

None

Digital Worms Attack

No in-app purchases

Questions

Is FM Playground free?
FM Playground 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 FM Playground or Digital Worms Attack have ads?
Neither FM Playground nor Digital Worms Attack shows ads.

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