Item: SimplePhysics
Rating: 84
Author: Dinsun

Our Site Score

84/100

SimplePhysics is a brilliant marriage of engineering logic and pure, destructive fun. It captures the 'trial and error' spirit of construction perfectly—you're given a budget and a goal, and it's up to you to design a structure that doesn't collapse under its own weight. The blueprint editor is incredibly intuitive, making it easy to sketch out complex designs in seconds.

The real genius, however, is the stress-testing phase. Watching your bridge or treehouse turn bright red as it nears its breaking point is genuinely tense. And if it does fail? The physics engine provides a hilarious and educational look at exactly where your engineering went wrong. The addition of the 'Finger Test' and explosions adds a layer of sandbox play that keeps it from feeling like just another educational tool. It's a game that makes you think like an engineer while letting you play like a kid with a wrecking ball.

Reviewed on: Fri Feb 27 2026

Dinsun Review

I respect the honesty of SimplePhysics. It doesn't try to hide behind fancy graphics or an epic story. It’s just you, some blueprints, and the relentless laws of physics. The 'Finger of Doom' feature—where you can test your structure by smashing it with your finger—is the only real concession to 'fun,' and even that is a practical testing tool.

It’s a bit too sterile for my taste, though. The interface feels like a professional CAD tool, which is impressive for a mobile game but makes it feel more like work than leisure. The difficulty ramps up fast, and if you don't have an engineering mind, you'll be staring at a red 'stress' indicator until your head hurts. It's a niche title for a niche audience. If you like solving problems for the sake of solving them, it’s fine. Otherwise, it’s a pass.

Overall Stats

Pros & Cons

Realistic physics simulation
Complex and rewarding puzzles
Clear stress visualization tools

Extremely dry presentation
Steep learning curve
Basic visual design

Technical Report

Performance: Calculation of complex structures can occasionally cause a brief hang.

Accessibility:

Audience Fit

Buy if: You enjoy logic puzzles and structural engineering concepts.

Skip if: You want a game with an actual art style or a narrative.

Similar Games:

Bridge Constructor
Poly Bridge

Reviewer Context

Reviewer: Dinsun
Hardware: iPhone 12 Mini
Playtime: 6 hours
Status: Completed all 'Medium' level challenges

The Game

Available on: iPhone, iPad, iPod

408233979

$0.99 9+★4.5 235 reviews

Author : Jundroo, LLC

Pubish Date : Mon Feb 21 2011

Last Update Date : Mon Aug 21 2017

Support Languages : English

Genres :

Version 2.1.4Mon Aug 21 2017

This app has been updated by Apple to display the Apple Watch app icon.
Updated to support 64-bit.
SimplePhysics lets you design complex structures for everything from tree houses to ferris wheels and then simulates your design with a sophisticated physics engine.
A wise person once said: "An engineer is someone who can do for a dime what any fool can do for a dollar." In SimplePhysics, your design must not only be strong enough, it must be cheap enough to win.
Create your design in seconds with the blueprints editor. If you make a mistake, simply tap the Undo button. Zoom in and out by pinching the screen and pan the view using a two finger drag.
While testing, you can see how the strain is distributed across your design. Areas that are under immense strain are colored bright red, while other areas are colored green. This allows you to find and fix problem areas in your design.
The finger test lets you use your finger to push and pull on your design. You can use this with pinpoint accuracy, or you can just smash your design to smithereens. The finger test has an explosive new twist. You can now create explosions by tapping the screen for ultimate annihilation.
The newly added Bomb Shack level includes a dummy with full support for ragdoll physics. Throw him around, blow him up, and smash him against your design.
The slow motion feature lets you slow things down so you can see how your design is failing, and it is also incredibly fun to watch explosions destroying your design in slow motion.
Features
* Realistic physics simulation
* Ragdoll physics
* Slow motion mode
* Stress display shows problem areas in your design
* Wide variety of levels!
* Finger Test - smash your design to pieces, or blow it up with realistic explosions!
* Save/Load designs
* E-mail your blueprints to your friends
* Universal support for the iPad
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
SimplePhysics lets you design complex structures for everything from tree houses to ferris wheels and then simulates your design with a sophisticated physics engine.
A wise person once said: "An engineer is someone who can do for a dime what any fool can do for a dollar." In SimplePhysics, your design must not only be strong enough, it must be cheap enough to win.
Create your design in seconds with the blueprints editor. If you make a mistake, simply tap the Undo button. Zoom in and out by pinching the screen and pan the view using a two finger drag.
While testing, you can see how the strain is distributed across your design. Areas that are under immense strain are colored bright red, while other areas are colored green. This allows you to find and fix problem areas in your design.
The finger test lets you use your finger to push and pull on your design. You can use this with pinpoint accuracy, or you can just smash your design to smithereens. The finger test has an explosive new twist. You can now create explosions by tapping the screen for ultimate annihilation.
The newly added Bomb Shack level includes a dummy with full support for ragdoll physics. Throw him around, blow him up, and smash him against your design.
The slow motion feature lets you slow things down so you can see how your design is failing, and it is also incredibly fun to watch explosions destroying your design in slow motion.
Features
* Realistic physics simulation
* Ragdoll physics
* Slow motion mode
* Stress display shows problem areas in your design
* Wide variety of levels!
* Finger Test - smash your design to pieces, or blow it up with realistic explosions!
* Save/Load designs
* E-mail your blueprints to your friends
* Universal support for the iPad

Ratings & Reviews

4.5 out of 5 with 235 Counts

★★★★★

Age Rating 9+

SimplePhysics lets you design complex structures for everything from tree houses to ferris wheels and submarines. Using a sophisticated physics engine, the game simulates how your design will hold up under pressure. Use the blueprints editor to build quickly, and then watch the stress distribution—areas under strain turn red while stable areas stay green. To win, your design must be both strong and cheap. For extra fun, use the 'Finger Test' to push your creation to its limits, or use the slow-motion feature to watch realistic explosions destroy your failed designs in detail.

Features

Realistic Physics Simulation

Intuitive Blueprint Editor

Stress & Strain Visualizer

Slow Motion Explosions

Tips

Cost-Effective Design

Remember: 'An engineer is someone who can do for a dime what any fool can do for a dollar.' Use triangles in your structures to provide maximum stability with the minimum amount of material to keep costs low.

Gameplays

Stress Testing

During simulation, look for bright red joints. This indicates the area is under immense strain. Use the 'Undo' button to go back and reinforce those specific spots with extra struts or better geometry.