# Forces Playground — Watch Forces Act on Objects > Physics simulation app demonstrating forces acting on objects in space. (iPhone/iPad app by Robert L Zimmelman.) - Source: https://appshunter.io/ios/app/forces-playground/id954854339 (this page in markdown: same URL + `.md`) - Developer: [Robert L Zimmelman](https://appshunter.io/developer/954130860) - Category: Education, Games, Simulation - Price: Free - Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 9.0 · 7 MB - Languages: English - Released: 2015-01-23 - Data updated: 2026-06-11 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/forces-playground/id954854339/reviews.md ## What is Forces Playground? This great App shows how forces affect objects in space! Drop objects into the scene and put forces in the scene to affect the objects! Demonstration of gravity, anti-gravity and vortex forces with images dropped in to the screen that get attracted to the forces when the users touches. The user can select Vortex, Gravity or Anti-Gravity forces and watch the fun in this physics simulation! Vortex will cause the objects on screen to rotate around. The user can increase or decrease the vortex forces on screen so the rotate left, stop or rotate right. The user can also increase or decrease the gravity forces on screen. Gravity will attract objects on the screen. Anti-gravity will repel objects on the screen. The user can increase or decrease the mass of the colored squares on screen by swiping up or down. Reset color mass to defaults by swiping left. Clear the screen by swiping right. Show or hide forces by pressing the buttons on the top of the screen. Special Thanks to NASA for the public domain images used for the Space pictures! ## Key features - Apply gravity, anti-gravity, and vortex forces - Adjust force strength and object mass - Observe object interactions in real-time - Clear and reset the scene - Show or hide forces ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/forces-playground/id954854339/reviews.md ### 5/5 — Just an amazing app *2015-03-21, version 1.1* I love this app so much. Great job Mr. Zimmelman. You did it once again. The app has absolutely no bugs and runs very smoothly. YOU DA BOMB.COM ## Frequently asked questions about Forces Playground ### What forces can I apply in Forces Playground? Forces Playground allows you to apply gravity, anti-gravity, and vortex forces to objects in the scene. You can also adjust the strength of these forces to observe different effects. ### How do I change the mass of objects in Forces Playground? You can increase or decrease the mass of the colored squares on screen by swiping up or down. Swiping left will reset the mass to its default value. ### Is Forces Playground suitable for young children? Yes, Forces Playground has an age rating of 4+ and is designed to be an engaging educational tool. It is available on iPhone, iPad, and iPod. ### Does Forces Playground have ads? No, Forces Playground does not contain advertisements. It is a completely free application for users. ### How often is Forces Playground updated? The latest version of Forces Playground is 1.9, which was released on September 18, 2017. While not frequently updated, it offers a stable physics simulation experience. ### Can I save my simulations in Forces Playground? The current description does not mention the ability to save simulations. Users can clear the screen by swiping right and reset the scene to start a new experiment. ### What educational concepts does Forces Playground teach? Forces Playground demonstrates fundamental physics principles such as gravity, anti-gravity, and rotational motion caused by vortex forces. It helps users visualize how forces affect objects in space. ### What is the user sentiment for Forces Playground? Forces Playground has a perfect rating of 5.0 stars from 1 rating, indicating a very positive user experience based on available data. ## Version history (last 5 releases) ### 1.9 — 2017-09-18 This app has been updated by Apple to display the Apple Watch app icon. Minor bug fixes and improvements. ### 1.8 — 2016-10-04 Trail sprites, general performance improvements, and now supports iOS10! ### 1.7 — 2016-06-13 sprites stay within screen boundaries! ### 1.6 — 2016-05-27 New graphics, space images, better color actions. ### 1.5 — 2015-11-08 V+ now increases vortex force in counter-clockwise direction, V- decreases vortex force in clockwise direction and reverses the vortex force. Now Available for iPad! Version 1.5 includes minor graphics performance improvements. ## Apps similar to Forces Playground | App | Rating | Price | Category | | --- | --- | --- | --- | | [Colorbook Kid and Toddler Lite](https://appshunter.io/ios/app/colorbook-kid-and-toddler-lite/id1566347350) | 4.1 (31) | Free | Education | | [Count Money Every Day ( Dollar Version) - A Second Time Be Richest](https://appshunter.io/ios/app/count-money-every-day-dollar-version-a-second-time-be-richest/id932008900) | 3.9 (16) | Free | Education | | [인천공항 방구석 해외여행](https://appshunter.io/ios/app/id1571094600) | — | Free | Education | | [mTrainer Easy](https://appshunter.io/ios/app/mtrainer-easy/id514269721) | 4.5 (40) | Free | Education | | [Learning Tube](https://appshunter.io/ios/app/learning-tube/id1187183085) | — | Free | Education | | [Russian Phrase Book Learn](https://appshunter.io/ios/app/russian-phrase-book-learn/id1165304149) | 4.5 (2) | $1.99 | Education | ## More apps by Robert L Zimmelman - [Photo Dance Party!](https://appshunter.io/ios/app/photo-dance-party/id954147140) - [Gesture Recognizer Fun](https://appshunter.io/ios/app/gesture-recognizer-fun/id958213693) - [Little Galileo Viewer](https://appshunter.io/ios/app/little-galileo-viewer/id1039841579) - [Ralphs To Go](https://appshunter.io/ios/app/ralphs-to-go/id1050434193) - [Maximum Plaid](https://appshunter.io/ios/app/maximum-plaid/id1064070949) All apps by Robert L Zimmelman: https://appshunter.io/developer/954130860 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-11.*