Uzu, An Interactive Light Show vs Gravilocity
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Generative particle system
- Real-time animation modes
- Interactive 3D manipulation
- Drawing mode
- Microphone input response
- Customizable presets
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"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
Gravilocity
Explore a dynamic particle playground where thousands of stars react to your touch, gravity, and even music. Create stunning visual effects with configurable options, fractal forms, and lightning arcs.
- Thousands of flying stars
- Touch and gesture interaction
- Gravity and accelerometer response
- Music visualization
- Fractal form generation
- Lightning arcs between touches
- Configurable drawing options
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Play with thousands of flying stars. Watch as stars respond to your fingers, while you pull, push and spin them. Watch as they fall and bounce in response to gravity and the accelerometer. Even make them pulse to a musical beat from the microphone. Hundreds of configurable options add to the fun. Features -Pinch and zoom and the stars stretch off into infinity making fractal forms. -Touch with multiple fingers and watch lightning arc between your touches -added VGA out support iPad/iPhone4. -many different drawing options -Preset system, build something interesting and save it for later. -Shape memory feature. Stars can fly home after you push them around. Watch Gravilocity in action: http://www.youtube.com/watch?v=IbjQU7DOjT4 Gravilocity is built on the critically acclaimed iBeams special effects system, which has been used to make iBeams and iBeams HD. [HINTS] -To make a parameter respond to the microphone press any one of the buttons with a blue arrow on it. A controller window shows up, press mic and the parameter will now respond to the microphone. Gravilocity was inspired by gravilux, and gravitarium, not to mention all the other particle play apps out there. *****Totally Awesome.... Running on an iPad this is seriously psychedelic. I have tried every other visualiser on the iPad and apart from it's bigger brother I-beams this eats them all for breakfast. I have said it before but the author of this software is a real genius. - AAWh *****One of the best of it's type *****Its the best particle manipulator I've messed with. Really cool job Created by Gedalia Pasternak, a Computer Graphics Engineer whose work has been seen in television commercials, video games, and the occasional military training system. As well as in the hands of bored teenagers at art museums.
Screenshots
Verdict
Uzu, An Interactive Light Show and Gravilocity both sit at 4.8 stars, but that hides the real split: 91% of Uzu, An Interactive Light Show's written reviews are positive against 76% of Gravilocity's. Uzu, An Interactive Light Show also leads on ratings volume (265 vs 73). Gravilocity's advantage is price ($0.99 vs $3.99) and iOS requirement (13.0 vs 17.6). On rating, update cadence, ads and in-app purchases 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
Uzu, An Interactive Light Show costs $3.99 and Gravilocity $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.8 for Uzu, An Interactive Light Show against 4.7 for Gravilocity. Both are backed by a comparable volume of ratings — 265 and 73 respectively. Written reviews are what separate them: 91% of Uzu, An Interactive Light Show's written reviews are positive against 76% of Gravilocity's.
Uzu, An Interactive Light Show ships an update every 2 months, Gravilocity monthly. The most recent releases landed on October 29, 2026 and October 21, 2026 respectively.
| Parameter | Uzu, An Interactive Light Show | Gravilocity |
|---|---|---|
| Price | $3.99 | $0.99 — better |
| Rating | 4.8 (265 ratings) — better | 4.7 (73 ratings) |
| Positive reviews | 91.1% of reviews — better | 76.3% of reviews |
| Number of ratings | 265 — better | 73 |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 16 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Colordodge Labs | gedalia.net |
Customer experience
Uzu, An Interactive Light Show
Gravilocity
User reviews
Uzu, An Interactive Light Show
From 265 App Store ratingsWhat we love
- 👍 Mesmerizing visuals
- 🎨 Endless creative possibilities
- 💡 Great for relaxation and meditation
- 🎨 Impressive color and pattern generation
- 👍 Fun and engaging for all ages
Room to improve
- 🐛 Crashes and stability issues on some devices
- 🔧 Limited customization options
- 🔧 Lack of music/sound integration
- 🔧 Outdated UI on newer iPads
Gravilocity
From 73 App Store ratingsWhat we love
- 🤩 Mesmerizing visuals
- 🎨 Endless customization options
- 💫 Hypnotic and relaxing experience
- 🎉 Fantastic particle effects
- 🤖 Highly responsive and interactive
Room to improve
- 🐛 Occasional crashes and glitches
- 🤔 Unintuitive controls and settings
- 🔋 High battery consumption
- 📱 Compatibility issues on older devices
- 🔇 Lack of music/audio integration
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
Gravilocity
Reported bugs
4 issues- App crashes on launch for some users
- Settings menu is unresponsive at times
- Visuals don't scale properly on iPad
- Bluetooth connection issues when using music
Requested features
5 requests- Add screen recording capability
- Improve Bluetooth/audio integration
- Provide more preset visualizations
- Enhance color customization options
- Implement a tutorial or user guide
In-app purchases
Uzu, An Interactive Light Show
No in-app purchases
Gravilocity
No in-app purchases
Questions
Is Uzu, An Interactive Light Show free?
Is Gravilocity free?
Which has better reviews, Uzu, An Interactive Light Show or Gravilocity?
Do Uzu, An Interactive Light Show or Gravilocity have ads?
Which is updated more often, Uzu, An Interactive Light Show or Gravilocity?
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