Comparison

SimplePhysics vs Space Agency

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

Head to head
About

SimplePhysics

Design and simulate complex structures using a realistic physics engine. Test your creations by applying stress, using a finger to push and pull, or even creating explosions. Analyze strain distribution to identify weak points and refine your designs for strength and cost-effectiveness.

Highlights
  • Realistic physics simulation
  • Blueprint editor
  • Stress display
  • Finger Test with explosions
  • Ragdoll physics
  • Slow motion mode
Features
Read full description

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

About

Space Agency

Design, construct, and launch your own rockets and satellites. Build a space station and explore the solar system in this challenging simulation game for aspiring astronauts.

Highlights
  • Build rockets
  • Launch satellites
  • Create a space station
  • Explore the solar system
  • Challenging gameplay
Features
Read full description

Build rockets, launch satellites, create a space station! Do you want to build and fly your own space rockets? Of course you do! Are you a billionaire? No...that makes it tricky. Fortunately, there is a way for us non-billionaires to run our own space programme...Space Agency! * Build rockets * Launch satellites * Create a space station * Explore the solar system This is a highly challenging and complex game. Only the most talented astronauts should attempt it. Have you got the right stuff?

Screenshots

SimplePhysics4 screens
Space Agency4 screens

Verdict

The call

The clearest difference is update cadence: SimplePhysics at every 3 weeks against Space Agency's every 2 months. SimplePhysics also leads on review sentiment (85% vs 75%) and price ($0.99 vs $1.99). Space Agency's advantage is chart position (#155 vs unranked) and ratings volume (740 vs 242). On rating, ads, in-app purchases and monetization model 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

SimplePhysics costs $0.99 and Space Agency $1.99 up front. SimplePhysics sells 2 one-off in-app purchases and Space Agency sells 11 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for SimplePhysics against 4.4 for Space Agency. Both are backed by a comparable volume of ratings — 242 and 740 respectively. Written reviews are what separate them: 85% of SimplePhysics's written reviews are positive against 75% of Space Agency's.

UpkeepUpdate frequency

SimplePhysics ships an update every 3 weeks, Space Agency every 2 months. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.

Scorecard6 real differences · 5 level
SimplePhysics versus Space Agency: the parameters behind the verdict, then further details
ParameterSimplePhysicsSpace Agency
Price$0.99 — better$1.99
Rating4.5 (242 ratings) — better4.4 (740 ratings)
Positive reviews85.0% of reviews — better75.3% of reviews
Number of ratings242740 — better
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank—#155 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better12.0
Further details — not scored
Size9 MB29 MB
Age rating9+4+
DeveloperJundroo, LLCNooleus

Customer experience

SimplePhysics

All ratings242 ratings
Positive88.8%
Neutral2.9%
Negative8.3%
Written reviews585 reviews
Positive85.0%
Neutral5.3%
Negative9.7%

Space Agency

All ratings740 ratings
Positive84.3%
Neutral4.3%
Negative11.4%
Written reviews369 reviews
Positive75.3%
Neutral9.5%
Negative15.2%

User reviews

SimplePhysics

From 242 App Store ratings

What we love

  • 👍 Challenging and fun
  • 💡 Engaging and educational
  • 👍 Great for all ages
  • 👍 Realistic physics simulation
  • 👍 Addictive gameplay

Room to improve

  • 🐛 Inconsistent physics behavior
  • 🐛 Difficulty placing/removing beams
  • 🐛 Crashes and compatibility issues
  • 🔍 Limited number of levels

Space Agency

From 740 App Store ratings

What we love

  • 🚀 Challenging and fun gameplay
  • 👍 Great value for money
  • 🚀 Smooth gameplay and controls
  • 🚀 Addictive and engaging
  • 👍 Realistic space simulation

Room to improve

  • 🐛 Occasional bugs and glitches
  • 🔒 Limited parts and features in sandbox mode
  • 🔒 Microtransactions for additional content
  • 🐛 Difficulty with certain missions
  • 🔒 Lack of updates and new content

Bugs and requests

SimplePhysics

Reported bugs

3 issues
  • Crashes on startup
  • Structures behaving unexpectedly
  • Leaderboard scores not accurate

Requested features

5 requests
  • More levels and level packs
  • Improved user interface
  • Ability to create custom structures
  • Leaderboards and social features
  • Tutorials and explanations of physics concepts

Space Agency

Reported bugs

5 issues
  • Sandbox mode parts not unlocking properly
  • Crashes and freezes during gameplay
  • Inability to restore purchased content
  • Glitches with certain rocket and station designs
  • Inconsistent performance on different devices

Requested features

6 requests
  • Add space shuttle functionality
  • Introduce astronauts and crew management
  • Expand the solar system with more planets and moons
  • Implement a more realistic orbital mechanics system
  • Add multiplayer and co-op capabilities
Show 1 more
  • Improve the camera and docking controls

In-app purchases

2 purchases

SimplePhysics

One-time2
  • View Solution$0.99
  • Thank the Developer$0.99
11 purchases

Space Agency

One-time11
  • Mission 02 Skip$0.99
  • Mission 12 Skip$0.99
  • Mission 15 Skip$0.99
Show 8 more
  • Mission 16 Skip$0.99
  • Transponder Module$0.99
  • 50 Quick Launches$1.99
  • 1000 Quick Launches$3.99
  • Nooleus X Parts Pack$3.99
  • Mission Free Unlock-All$4.99
  • Sandbox Unlock All Parts$7.99
  • Sandbox Unlock Standard Parts$7.99

Questions

Is SimplePhysics free?
SimplePhysics costs $0.99, and also offers in-app purchases.
Is Space Agency free?
Space Agency costs $1.99, and also offers in-app purchases.
Which has better reviews, SimplePhysics or Space Agency?
SimplePhysics is rated higher. SimplePhysics averages 4.5 out of 5 from 242 ratings, while Space Agency averages 4.4 from 740 ratings.
Do SimplePhysics or Space Agency have ads?
Neither SimplePhysics nor Space Agency shows ads.
Which is updated more often, SimplePhysics or Space Agency?
SimplePhysics ships an update every 3 weeks, and Space Agency every 2 months. Most recently, SimplePhysics was updated on October 13, 2026 and Space Agency on October 14, 2026.

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