Comparison

Bridge Constructor Portal vs while True

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

Head to head
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!

About

while True

Engage in a puzzle simulation game where you learn about machine learning, neural networks, and AI by building a cat-to-human speech recognition system. No coding experience is required to play.

Highlights
  • Machine learning and AI puzzles
  • Visual programming interface
  • Cat-to-human speech recognition system
  • Real-life machine learning concepts
  • Freelancer simulation
  • Problem-solving challenges
Features
Read full description

while True: learn() is a puzzle/simulation game about even more puzzling stuff: machine learning, neural networks, big data and AI. But most importantly, it’s about understanding your cat. In this game, you play as a coder who accidentally found out that their cat is extremely good at coding, but not as good at speaking human language. Now this coder (it’s you!) must learn all there is to know about machine learning and use visual programming to build a cat-to-human speech recognition system. This game fits best for... - People who want to know more about how machine learning and related technologies work - Parents and teachers who are looking for a fun and easy way to make an intro to logical thinking, programming, and technologies for kids - Programmers who want to learn new concepts that they can apply to their own coding - Those who want to play games and not feel guilty about ‘wasting their time’ (although we believe you shouldn’t feel guilty at all while playing games!) - Players who like to keep their brains busy and working in different ways, while still having fun - Gamers looking to improve their problem-solving skills and feel immense sense of satisfaction and achievement that comes along with it - People who like smart cats Learn how machine learning works in real life! The game is loosely based on real-life machine learning technologies: from goofy Expert Systems to mighty Recurrent Neural Networks, capable of predicting the future. Don’t worry: it all plays out as a puzzle game. No coding experience required! Train yourself into a data science wizard! Drag objects around your screen with a mouse! Connect them with lines (oh yeah)! Try. Fail. Optimize. Try again. Then press “Release” button and see that sweet pieces of data flow smoothly through your screen. Embrace an adventurous lifestyle of a machine learning specialist! Designing a groundbreaking technology requires time, experience and money. That means you’ll have to work as a freelancer, with all the excitement that comes along with it. Receive emails! Accept contracts! Sit alone in a dark room for days without saying a single word! Socialize on forums! That’s what real data scientists do! Coding just got real! Our quests are based on actual problems, solved by machine learning. This includes building a self-driving car (with your cat as a pilot). And if you really want to test your programming might, you can become a CTO of a startup: it’s your skills and your schemes against the savage laws of the market! Earn a fortune, flip off your bosses and become a tech guru… Or lose everything and crawl back to the doorstep of HR department: at least it was worth trying, right? Improve your gear, improve your life! Once you ensure a stable cashflow, you’ll be able to buy yourself a bunch of fancy hardware to improve your performance. But it’s not just about the hardware! Buy yourself a new smartphone or a geeky figurine! Buy fancy outfits for your cat! Hell, you can even buy yourself an aloe! Fun fact: this is what machine learning specialists actually do. Now, you can become one of them (minus the money)! while True: learn() is the best game about being a data science specialist because no one else has been weird enough to make another one!

Screenshots

Bridge Constructor Portal4 screens
while True4 screens

Verdict

The call

The clearest difference is in-app purchases: while True at none against Bridge Constructor Portal's 1. while True also leads on update cadence (every 4 days vs every 2 months) and iOS requirement (11.0 vs 13.0). Bridge Constructor Portal's advantage is price ($0.99 vs $4.99) and chart position (#8 vs unranked). On rating, review sentiment, ads 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

Bridge Constructor Portal costs $0.99 and while True $4.99 up front. Bridge Constructor Portal sells 1 one-off in-app purchase. while True asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Bridge Constructor Portal against 4.9 for while True. That said, the two scores are not equally well evidenced: Bridge Constructor Portal has 4.1K ratings behind it against 709, so its average is the more settled of the two. Written reviews are what separate them: 84% of Bridge Constructor Portal's written reviews are positive against 80% of while True's.

UpkeepUpdate frequency

Bridge Constructor Portal ships an update every 2 months, while True every 4 days. Both last shipped on September 29, 2026.

Scorecard6 real differences · 5 level
Bridge Constructor Portal versus while True: the parameters behind the verdict, then further details
ParameterBridge Constructor Portalwhile True
Price$0.99 — better$4.99
Rating4.8 (4.1K ratings)4.9 (709 ratings) — better
Positive reviews84.5% of reviews — better80.4% of reviews
Number of ratings4.1K — better709
Update frequencyEvery 2 monthsEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidPaid
Best chart rank#8 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.011.0 — better
Further details — not scored
Size196 MB577 MB
Age rating4+9+
DeveloperHeadup GmbHLUDENIO LABS LTD

Customer experience

Bridge Constructor Portal

All ratings4,075 ratings
Positive95.3%
Neutral1.7%
Negative2.9%
Written reviews669 reviews
Positive84.5%
Neutral6.1%
Negative9.4%

while True

All ratings709 ratings
Positive97.6%
Neutral0.8%
Negative1.6%
Written reviews153 reviews
Positive80.4%
Neutral6.5%
Negative13.1%

User reviews

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

while True

From 709 App Store ratings

What we love

  • 👍 Great game with good coverage of topics
  • 💡 Humorous and educational
  • 👍 Fun and challenging puzzles
  • 👍 Logical thinking process similar to programming
  • 👍 Informative links to real-world concepts

Room to improve

  • 🐛 Bugs and crashes, especially on older devices
  • 🔋 High battery consumption
  • 👎 UI issues, such as tiny text and fiddly controls
  • 👎 Inconsistent quality of external links
  • 🐛 Saved progress deleted after updates

Bugs and requests

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

while True

Reported bugs

5 issues
  • AI car behavior issues
  • Clipboard access problems
  • Startup investment income not calculating correctly
  • Evolve button not working on iOS
  • Frequent crashes, especially on older devices

Requested features

5 requests
  • Cross-device save data synchronization
  • More music and audio options
  • Improved UI scaling and readability
  • Better in-game help and tutorials
  • Expanded machine learning and data science content

In-app purchases

1 purchases

Bridge Constructor Portal

One-time1
  • Portal Proficiency$1.99
None

while True

No in-app purchases

Questions

Is Bridge Constructor Portal free?
Bridge Constructor Portal costs $0.99, and also offers in-app purchases.
Is while True free?
while True costs $4.99, with no in-app purchases.
Which has better reviews, Bridge Constructor Portal or while True?
while True is rated higher. Bridge Constructor Portal averages 4.8 out of 5 from 4.1K ratings, while while True averages 4.9 from 709 ratings.
Do Bridge Constructor Portal or while True have ads?
Neither Bridge Constructor Portal nor while True shows ads.
Which is updated more often, Bridge Constructor Portal or while True?
Bridge Constructor Portal ships an update every 2 months, and while True every 4 days. Most recently, Bridge Constructor Portal was updated on September 29, 2026 and while True on September 29, 2026.

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