Comparison

Evolution vs Bridge Constructor Portal

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

Head to head
About

Evolution

Design and build unique creatures using joints, bones, and muscles. Witness their learning and improvement through evolutionary algorithms and neural networks as they tackle tasks like running, jumping, and flying. Share your creations with friends.

Highlights
  • Creature design with joints, bones, muscles
  • Neural network learning
  • Evolutionary algorithm improvement
  • Tasks: running, jumping, climbing, flying
  • Share simulation saves and creature designs
  • View source code
Features
Currently charting
Read full description

Use joints, bones and muscles to build creatures that are only limited by your imagination. Watch how the combination of neural networks and an evolutionary algorithm can enable your creatures to learn and improve at their given tasks all on their own. The tasks include running, jumping, climbing and flying. Can you design the ultimate creature that is good at all of the tasks? The latest update allows you to easily share your simulation saves and creature designs with your friends. Note that this is more of a simulation than a game. There are no real objectives. But there is a lot to learn if you are interested in the basics of machine learning and neural networks. You can even look at the source code if you want. There is also a Mac & PC version available for download and a browser version for you to try out on the main project website (keiwando.com/evolution).

About

Bridge Constructor Portal

Construct bridges, ramps, and slides in a science lab environment. Utilize iconic gadgets like portals and gels to guide vehicles through challenging test chambers while avoiding hazards. Solve physics puzzles with guidance from a familiar AI.

Highlights
  • Bridge and ramp construction
  • Portal gadget integration
  • Physics-based puzzles
  • Hazard evasion
  • GLaDOS voice guidance
  • Test chamber challenges
Features
Read full description

Enter the Aperture Science Enrichment Center and experience Bridge Constructor Portal – the unique merging of the classic Portal™ and Bridge Constructor™ games. As a new employee in the Aperture Science test lab, it's your job to build bridges, ramps, slides, and other constructions in 60 test chambers and get the Bendies safely across the finish line in their vehicles. Make use of the many Portal gadgets, like portals, propulsion gel, repulsion gel, aerial faith plates, cubes, and more to bypass the sentry turrets, acid pools and laser barriers, solve switch puzzles, and make it through the test chambers unscathed. Let Ellen McLain, the original voice of GLaDOS, guide you through the tutorial, and learn all the tips and tricks that make a true Aperture Science employee. The bridge is a lie! Features: - The merging of two worlds: the first Bridge Constructor™ with an official Portal™ license - Create complex constructions in the Aperture Science labs - Let GLaDOS accompany you through tricky physics adventures - Use portals, aerial faith plates, propulsion gel, repulsion gel, and much more to master the complicated tasks - Evade dangers such as sentry turrets, emancipation grills, laser fields, and acid - Help your Bendies cross the finish line – on their own or in a convoy PORTAL PROFICIENCY DLC Bridge Constructor Portal receives a fresh DLC as hot as a potato: Portal Proficiency Return to the Aperture Science Enrichment Center and experience a brand-new challenge. Finally, you are now able to not only construct bridges, but you can even place portals yourself! It’s just like the real thing! Face up to 30 brain-teasing, remarkably unsafe test chambers in three chapters. Create insane constructions and decide where to place portals to show if you really are proficient in working with Portals. Only the bravest and smartest participants will succeed and receive the Golden Condolence Letter. Features • New Aperture Science test series with 30 brand new, brain-teasing levels • New feature: place the portals in the new test chambers yourself!

Screenshots

Evolution4 screens
Bridge Constructor Portal4 screens

Verdict

The call

The clearest difference is in-app purchases: Evolution at none against Bridge Constructor Portal's 1. Evolution also leads on chart position (#195 vs unranked). Bridge Constructor Portal's advantage is rating (4.8 vs 4.4) and ratings volume (4.1K vs 549). On price, review sentiment, update cadence and ads 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

Evolution costs $1.99 and Bridge Constructor Portal $1.99 up front. Bridge Constructor Portal sells 1 one-off in-app purchase. Evolution asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Bridge Constructor Portal holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: Bridge Constructor Portal has 4.1K ratings behind it against 549, so its average is the more settled of the two. Written reviews split almost evenly too, at 84% and 84% positive.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on October 16, 2026.

Scorecard5 real differences · 6 level
Evolution versus Bridge Constructor Portal: the parameters behind the verdict, then further details
ParameterEvolutionBridge Constructor Portal
Price$1.99$1.99
Rating4.4 (549 ratings)4.8 (4.1K ratings) — better
Positive reviews83.6% of reviews84.5% of reviews — better
Number of ratings5494.1K — better
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterPaid
Best chart rank#195 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size67 MB196 MB
Age rating4+4+
DeveloperKeiwan DonyagardHeadup GmbH

Customer experience

Evolution

All ratings549 ratings
Positive85.8%
Neutral4.4%
Negative9.8%
Written reviews195 reviews
Positive83.6%
Neutral5.1%
Negative11.3%

Bridge Constructor Portal

All ratings4,075 ratings
Positive95.3%
Neutral1.7%
Negative2.9%
Written reviews670 reviews
Positive84.5%
Neutral6.1%
Negative9.4%

User reviews

Evolution

From 549 App Store ratings

What we love

  • 👍 Great game
  • 🚀 Addictive and fun
  • 💡 Interesting concept of AI-driven evolution
  • 👍 Unique and creative
  • 👍 Enjoyable to watch creatures evolve

Room to improve

  • 🐛 Crashes and freezes
  • 🐛 Glitches and bugs
  • 🐛 Creatures behave erratically
  • 🐛 Difficulty creating functional creatures

Bridge Constructor Portal

From 4.1K App Store ratings

What we love

  • 🚀 Excellent physics engine
  • 👍 Engaging Portal-themed puzzles
  • 😄 Hilarious GlaDOS commentary
  • 🤖 Seamless integration of Portal elements
  • 💰 Good value for money

Room to improve

  • 🐛 Occasional save data loss issues
  • 🤔 Difficulty ramps up too quickly
  • 🕹️ Controls can be finicky on smaller screens
  • 🎨 Lack of customization options

Bugs and requests

Evolution

Reported bugs

4 issues
  • Creatures re-appear after being deleted
  • Horizontal distance not recorded properly
  • Simulation screen turns white
  • Creatures get stuck in a looping state

Requested features

8 requests
  • Add swimming and flying modes
  • Ability to customize creature body parts
  • Option to speed up or pause evolution
  • Save and load creature designs
  • More task types (e.g. grabbing, throwing)
Show 3 more
  • Multiplayer or competition modes
  • Improved camera controls
  • Ability to create obstacles or terrain

Bridge Constructor Portal

Reported bugs

2 issues
  • Ads appearing in paid version
  • Inconsistent performance on older devices

Requested features

4 requests
  • Level editor and custom level sharing
  • Leaderboards and challenge modes
  • Ability to skip tutorial levels
  • Cloud sync support for cross-device progress

In-app purchases

None

Evolution

No in-app purchases

1 purchases

Bridge Constructor Portal

One-time1
  • Portal Proficiency$1.99

Questions

Is Evolution free?
Evolution costs $1.99, with no in-app purchases.
Is Bridge Constructor Portal free?
Bridge Constructor Portal costs $1.99, and also offers in-app purchases.
Which has better reviews, Evolution or Bridge Constructor Portal?
Bridge Constructor Portal is rated higher. Evolution averages 4.4 out of 5 from 549 ratings, while Bridge Constructor Portal averages 4.8 from 4.1K ratings.
Do Evolution or Bridge Constructor Portal have ads?
Neither Evolution nor Bridge Constructor Portal shows ads.
Which is updated more often, Evolution or Bridge Constructor Portal?
Evolution ships an update every 2 months, and Bridge Constructor Portal every 2 months. Most recently, Evolution was updated on October 16, 2026 and Bridge Constructor Portal on October 16, 2026.

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