Comparison

Build a Bridge! vs Spaceflight Simulator

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

Head to head
About

Build a Bridge!

A physics-based puzzle game where you design and build bridges using various materials. Test your creations in 3D to see if they hold up under pressure, with multiple levels and environments to explore.

Highlights
  • Physics-based bridge construction
  • Choose from wood, metal, and cables
  • 86 challenging levels
  • Realistic physics engine
  • 3D testing mode
  • Easy mode for creativity
Features
Read full description

Build a Bridge! is a complex yet approachable physics-based puzzle game. It tasks the player with creating more and more elaborate bridges across multiple levels. You will have to choose the proper materials, using creativity and logic to stay within required budget and create a strong construction. During the planning phase the game presents itself with a simple, 2D interface. It is there that you select the best materials for your bridge and connect the dots to make the most resilient structure you can. You can approach each level as a complex puzzle, trying to be as efficient as possible and get the best solution. But don't be afraid to experiment too. You can just go crazy and construct something that looks outrageous but still somehow works. There's fun in both of these approaches. When you're done, switch to the 3D mode and watch a car drive through your bridge. Will it hold? Or will you watch a spectacular crash? In addition to the normal mode the game features the easy mode for more relaxed gameplayed, focused on creativity and improvisation. You can also use in-game hint system if things get too hard. With 86 levels to construct you will not run out of things to do quickly. Game features: - Different materials to build from - Wood, Metal, Cables - 86 levels of increasingly difficult puzzles - Varied, detailed environments full of interactive elements - Multiple cars to test out your constructions - Realistic physics engine - Beautiful, stylised art style - Available in 13 languages IGRS rating: 13+

About

Spaceflight Simulator

Build and launch rockets to explore a realistic, open universe. Experience space exploration with accurate physics and a vast, explorable solar system.

Highlights
  • Build custom rockets
  • Realistic orbital mechanics
  • Explore a scaled universe
  • Visit planets and moons
  • Open-world space exploration
  • Real-life physics simulation
Read full description

This game is about space explorations, its about building your own rocket, and going out to explore and see whats out there, all while following real life physics. • Realistically scaled universe, with planets up to hundreds of kilometers in size and millions of kilometers of space between them. • Realistic orbital mechanics • Open universe, if you see something in the distance, you can go there, no limits, no invisible walls. Current planets: Mercury. Venus. Earth. Moon. Mars. Phobos. Deimos.

Screenshots

Build a Bridge!4 screens
Spaceflight Simulator4 screens

Verdict

The call

The clearest difference is ads: Spaceflight Simulator at none against Build a Bridge!'s shown. Spaceflight Simulator also leads on update cadence (every 9 days vs every 2 months) and review sentiment (86% vs 59%). On price, in-app purchases, monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Build a Bridge! sells 10 one-off in-app purchases and Spaceflight Simulator sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Spaceflight Simulator holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 26K and 97K respectively. Written reviews point the same way: 59% of Build a Bridge!'s written reviews are positive against 86% of Spaceflight Simulator's.

UpkeepUpdate frequency

Build a Bridge! ships an update every 2 months, Spaceflight Simulator every 9 days. Both last shipped on September 24, 2026.

Scorecard5 real differences · 5 level
Build a Bridge! versus Spaceflight Simulator: the parameters behind the verdict, then further details
ParameterBuild a Bridge!Spaceflight Simulator
PriceFreeFree
Rating4.6 (26K ratings)4.8 (97K ratings) — better
Positive reviews59.0% of reviews85.7% of reviews — better
Number of ratings26K97K — better
Update frequencyEvery 2 monthsEvery 9 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.015.0
Further details — not scored
Size325 MB172 MB
Age rating12+4+
DeveloperBoomBit, Inc.Spaceflight Simulator UK Ltd

Customer experience

Build a Bridge!

All ratings25,979 ratings
Positive90.3%
Neutral4.7%
Negative5.0%
Written reviews1,421 reviews
Positive59.0%
Neutral7.5%
Negative33.4%

Spaceflight Simulator

All ratings97,457 ratings
Positive96.3%
Neutral1.7%
Negative2.0%
Written reviews4,740 reviews
Positive85.7%
Neutral5.0%
Negative9.3%

User reviews

Build a Bridge!

From 26K App Store ratings

What we love

  • 🚀 Addictive gameplay
  • 👍 Realistic physics
  • 🚀 No WiFi required
  • 🚀 Good graphics
  • 👍 Teaches engineering concepts

Room to improve

  • 🐛 Frequent crashes
  • 💰 Excessive ads and in-app purchases
  • 🤯 Extremely difficult levels
  • 🤔 Unrealistic bridge scenarios
  • 🤯 Confusing mechanics

Spaceflight Simulator

From 97K App Store ratings

What we love

  • 🚀 Realistic physics and space simulation
  • 👍 Intuitive controls and easy to learn
  • 🚀 Ability to build complex rockets and spacecraft
  • 👍 No ads or in-app purchases required to play

Room to improve

  • 🐛 Occasional bugs and glitches, especially with large rockets
  • 🔋 Potential performance issues on older devices
  • 🔒 Limited customization and part options in free version
  • 🚀 Docking and rendezvous maneuvers can be very challenging

Bugs and requests

Build a Bridge!

Reported bugs

3 issues
  • Progress not saving properly
  • Game freezing and crashing
  • Ads causing the game to malfunction

Requested features

5 requests
  • More levels and content updates
  • Controller support
  • Easier difficulty mode
  • Less intrusive ads
  • Ability to build bridges freely without restrictions

Spaceflight Simulator

Reported bugs

4 issues
  • Rocket parts sometimes clipping through each other
  • Occasional freezing or crashing when launching large rockets
  • Issues with RCS thrusters firing unexpectedly during docking
  • Problems with maintaining stable orbits and transfers

Requested features

6 requests
  • Add more planets, moons, and celestial bodies to explore
  • Implement a career mode or progression system with challenges
  • Allow for more customization of rocket parts and spacecraft
  • Improve docking and rendezvous mechanics to make them more accessible
  • Add the ability to control individual astronauts and perform EVAs
Show 1 more
  • Implement a fuel line system for more efficient staging

In-app purchases

10 purchases

Build a Bridge!

One-time10
  • Easy Mode$0.99
  • Small Coins Pack2 variants$1.99
  • Space World$1.99
Show 7 more
  • Easy Mode$2.99
  • Remove Ads$2.99
  • Welcome Offer Unlock All$4.99
  • Welcome Offer - Starter Pack$4.99
  • Orient World$5.99
  • Welcome Offer - Constructor$9.99
  • Unlock All$9.99
10 purchases

Spaceflight Simulator

One-time10
  • Skins Expansion$2.99
  • Full Version$3.99
  • Redstone + Atlas Pack$3.99
Show 7 more
  • Parts Expansion$4.99
  • Infinite Area Expansion$4.99
  • Expansion Bundle$7.99
  • Cheats Expansion$9.99
  • Full Bundle Upgrade$9.99
  • Full Bundle$11.99
  • Full Bundle$14.99

Questions

Is Build a Bridge! free?
Build a Bridge! is free to download, with in-app purchases available.
Is Spaceflight Simulator free?
Spaceflight Simulator is free to download, with in-app purchases available.
Which has better reviews, Build a Bridge! or Spaceflight Simulator?
Spaceflight Simulator is rated higher. Build a Bridge! averages 4.6 out of 5 from 26K ratings, while Spaceflight Simulator averages 4.8 from 97K ratings.
Do Build a Bridge! or Spaceflight Simulator have ads?
Build a Bridge! shows ads; Spaceflight Simulator does not.
Which is updated more often, Build a Bridge! or Spaceflight Simulator?
Build a Bridge! ships an update every 2 months, and Spaceflight Simulator every 9 days. Most recently, Build a Bridge! was updated on September 24, 2026 and Spaceflight Simulator on September 24, 2026.

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