Jiggle Balls vs Grating Simulator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Jiggle Balls
This app provides a fun, interactive physics simulation where you can add, flick, and watch balls bounce realistically. Customize ball colors, gravity, weight, and backgrounds for endless entertainment.
- Tap to add balls
- Realistic physics simulation
- Device rotation for tumbling
- Flick balls to launch
- Customizable ball colors
- Adjustable gravity
- Set background from photos
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Stuck in line? Need a break at work? Kids need something to play with? Well... why not jiggle some balls? Jiggle Balls is a "visualization" that will help you pass the time away! Simply tap on the screen to add new balls. Watch them as they fall "realistically" to the ground. Rotate your device and they'll tumble around the screen. Flick the balls and watch 'em fly! And how about those bongo bouncing noises when they hit the side walls? Jiggle Balls uses a revolutionary physics engine to simulate real world forces. You'll be amazed at how much fun it is to see how the balls react to your movements. In fact, put it on your center console in your car or take it with you on the train, subway, or schoolbus and watch the balls slam forward as you brake and then slide backwards as you accelerate. Try it around the corners too... but keep your eyes on the road! Jiggle Balls allows you to change many of the visuals. You can try different colored balls or try different gravity schemes. Watch how the balls would respond if you were in space with no gravity. Or how about EXTREME gravity? SQUASH! And now you can try different weights on the balls, choose your own background from your photo album, and set the bounciness! Jiggle Balls will keep you and your kids entertained for hours. And if your boss walks in on you and you are "jiggling" balls, tell him to visit the App Store and try it himself! New features being added all the time! Watch the video at www.funkyvisions.com. REVIEWS - We were in a long line with my kids today and Jiggle Balls kept my 3 year old entertained until the line was over! - It's always the simple things that are the best. Great job lads. - This app is neat! I used it to help my science class learn about atoms.
Grating Simulator
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The laser interference pattern is similar to what would be produced by a Laser pointer’s beam passing through a diffraction grating – When you shine a laser pointer (green, 532nm wavelength) through a series of transmission diffraction gratings, you get a beautiful regular array of bright spots. The center spot is the zero-order (undiffracted beam), and the surrounding spots are the various diffraction orders. The symmetry and regularity of the pattern is characteristic of a diffraction grating pattern. This simulation could be used as a demonstration setup for physics education – teaching about wave optics, interference and diffraction. It is a classic physics demonstration that beautifully illustrates the wave nature of light and the principles of diffraction.
Screenshots
Verdict
The clearest difference is update cadence: Grating Simulator at every 5 days against Jiggle Balls's every 5 weeks. Jiggle Balls's advantage is iOS requirement (8.0 vs 17.6). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Jiggle Balls ships an update every 5 weeks, Grating Simulator every 5 days. Both last shipped on October 31, 2026.
| Parameter | Jiggle Balls | Grating Simulator |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 61.3% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 5 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 7 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Funky Visions | Mark Barclay |
Bugs and requests
Jiggle Balls
Reported bugs
4 issues- Blue ticks missing in menu on iPhone X/XS Max
- App crashes if screen is tapped during startup
- Flicking needs work, only takes top balls
- Wastes battery
Requested features
18 requests- Add more colors (neon yellow, orange, turquoise, purple)
- Allow changing ball size
- Add more preset backgrounds
- Add an icon to clear balls with animation
- Make balls brighter and more transparent
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- Fix app crash on startup tap
- Add more sounds
- Allow mixing and moving balls by shaking
- Add more effects like breaking glass or flowing liquid
- Add a ragdoll guy to put in the balls
- Add an optional opening at the top for balls to roll out
- Add unlimited balls
- Allow picking own background from saved pictures
- Add specific amount of balls set by user
- Implement touch control for moving balls
- Add more bounce
- Make it more customizable
- Add yellow balls
Grating Simulator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Jiggle Balls
No in-app purchases
Grating Simulator
No in-app purchases
Questions
Is Jiggle Balls free?
Is Grating Simulator free?
Do Jiggle Balls or Grating Simulator have ads?
Which is updated more often, Jiggle Balls or Grating Simulator?
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