Comparison

Uzu, An Interactive Light Show vs Euler VS

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

Head to head
About

Uzu, An Interactive Light Show

Explore a generative design playground that combines math, physics, and art. Create dynamic light shows with interactive particle systems, customizable animations, and drawing modes. Experience endless possibilities for visual creation and interaction.

Highlights
  • Generative particle system
  • Real-time animation modes
  • Interactive 3D manipulation
  • Drawing mode
  • Microphone input response
  • Customizable presets
Features
Read full description

"This is doodling for digital natives . . . mind blowing." — Wired Magazine "Uzu for iPad is endlessly complicated, simply fun." — Ars Technica Uzu is a generative design playground — a math-physics-art toy for anyone who ever loved spirographs, fireworks, planetariums, lava lamps, light painting, kaleidoscopes, or graphing calculators. Touch the screen and watch thousands of particles swirl, spiral, and bloom in real time. Change the entire feel by simply changing how many fingers you use. Relax. Play. Meditate. Create wallpapers. Or lose yourself for an hour tweaking symmetry, animation modes, and effects. Uzu is endlessly deep and simply fun. Now completely rebuilt with a native Metal engine and a beautiful SwiftUI interface — smoother, richer, and more powerful than ever. FEATURES • Fully dynamic generative particle system • 21 animation modes for each touch count (0 through 10) • Rotational, translational, and reflective symmetry • 122 factory presets plus unlimited user presets • 10 visual effects: Glow, Warp, Kaleidoscope, Sparkle, Feedback, Color, Gradient, Pixelate, Scanlines, and Vignette • Export and import presets — save, share, and back up your creations • Fast preset switching, shake to hide the menu, adjustable quality settings • Freeze mode, microphone reactivity, and thousands of possible combinations • Create stunning backgrounds for iPhone and iPad ACCLAIM • Winner of Apple's "App of the Week" • Apple Rewind: Best Generative Art and Sound App • Reached #1 on the App Store • Featured in Apple's "App Store Essentials Hall of Fame" • Seen in the "Year of the iPad" video at the iPad keynote • Featured as an Apple Staff Favorite SUPPORT Questions or stories? We'd love to hear from you. jason@colordodge.com www.colordodge.com

About

Euler VS

Explore a dynamic world of geometric art and visual synthesis with interactive touch controls. Design and play with harmonic motion and color systems, with options to expand your library through in-app purchases. Sync your creations from macOS for a seamless experience.

Highlights
  • Interactive geometric art
  • Harmonic motion exploration
  • Touch-driven visual synthesis
  • 24 professional presets
  • In-app preset packs
  • Tap Tempo feature
  • iCloud sync with macOS
Features
Read full description

Discover a living world of harmonic motion, geometric art, and interactive visual synthesis. Euler VS Player brings the expressive visuals of the macOS app to your iPhone and iPad in a streamlined, touch-driven experience built for exploration, performance, and play. Play Anywhere. Create on macOS. Euler VS Player includes 24 professionally crafted presets, each showcasing unique combinations of periodic functions, harmonic oscillators, geometric transformations, and color systems. Interact with any shape using simple touch gestures to explore animations in real time. Design your own presets using Euler Visual Synthesizer for macOS, organize them into banks, for synchronization with your iOS device through iCloud. Preset Packs and Performance Tools Expand your library with premium professionally designed preset banks available as in-app purchases. For performance and live play, you can tap along to music using the built-in Tap Tempo feature. Tempo-enabled presets will pulse and animate in time with your rhythm. A fully automatic mode is also included, allowing Euler VS Player to cycle through all presets in a bank hands-free. Important Note Euler VS Player is an interactive visual tool. It does not react to external audio input. Tempo-based modulation is controlled manually using Tap Tempo or through automatic playback options.

Screenshots

Uzu, An Interactive Light Show4 screens
Euler VS4 screens

Verdict

The call

The clearest difference is price: Euler VS at Free against Uzu, An Interactive Light Show's $3.99. Euler VS also leads on rating (5.0 vs 4.8) and review sentiment (100% vs 91%). Uzu, An Interactive Light Show's advantage is in-app purchases (none vs 2) and update cadence (every 2 months vs every 8 months). On 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

Euler VS is free to download; Uzu, An Interactive Light Show costs $3.99 up front. Euler VS sells 2 one-off in-app purchases. Uzu, An Interactive Light Show asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Euler VS holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Uzu, An Interactive Light Show has 261 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 91% of Uzu, An Interactive Light Show's written reviews are positive against 100% of Euler VS's.

UpkeepUpdate frequency

Uzu, An Interactive Light Show ships an update every 2 months, Euler VS every 8 months. The most recent releases landed on September 24, 2026 and June 11, 2026 respectively.

Scorecard9 real differences · 1 level
Uzu, An Interactive Light Show versus Euler VS: the parameters behind the verdict, then further details
ParameterUzu, An Interactive Light ShowEuler VS
Price$3.99Free — better
Rating4.8 (261 ratings)5.0 (5 ratings) — better
Positive reviews91.0% of reviews100.0% of reviews — better
Number of ratings261 — better5
Update frequencyEvery 2 months — betterEvery 8 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPadiPhone, iPad, iPod, Apple TV — better
Requires iOS17.615.2 — better
Further details — not scored
Size16 MB12 MB
Age rating4+4+
DeveloperColordodge LabsAllOneWord Software LLC

Customer experience

Uzu, An Interactive Light Show

All ratings261 ratings
Positive95.0%
Neutral2.3%
Negative2.7%
Written reviews367 reviews
Positive91.0%
Neutral4.1%
Negative4.9%

Euler VS

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Uzu, An Interactive Light Show

Reported bugs

3 issues
  • Crashes on iOS 4.2 and newer
  • Menu controls not working on iPad Pro
  • Screenshot feature not functioning properly

Requested features

5 requests
  • Add music/sound reactive features
  • Implement full-screen mode without UI
  • Introduce more advanced preset options
  • Add ability to save and share custom presets
  • Optimize performance for latest iPad models

Euler VS

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Uzu, An Interactive Light Show

No in-app purchases

2 purchases

Euler VS

One-time2
  • Townsend '94 Bank$0.99
  • King St. Garage$0.99

Questions

Is Uzu, An Interactive Light Show free?
Uzu, An Interactive Light Show costs $3.99, with no in-app purchases.
Is Euler VS free?
Euler VS is free to download, with in-app purchases available.
Which has better reviews, Uzu, An Interactive Light Show or Euler VS?
Euler VS is rated higher. Uzu, An Interactive Light Show averages 4.8 out of 5 from 261 ratings, while Euler VS averages 5.0 from 5 ratings.
Do Uzu, An Interactive Light Show or Euler VS have ads?
Neither Uzu, An Interactive Light Show nor Euler VS shows ads.
Which is updated more often, Uzu, An Interactive Light Show or Euler VS?
Uzu, An Interactive Light Show ships an update every 2 months, and Euler VS every 8 months. Most recently, Uzu, An Interactive Light Show was updated on September 24, 2026 and Euler VS on June 11, 2026.

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