Comparison

Juno 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

Juno

Design, build, and fly rockets, planes, and more with realistic physics. Automate your creations with a visual programming language, explore planets, and manage your own aerospace company in a detailed career mode. Share your designs with a vibrant community.

Highlights
  • Build rockets, planes, cars, and more
  • Visual programming language (Vizzy)
  • Realistic physics simulation
  • Career mode with tech tree
  • Resize and reshape parts
  • Customizable engines
  • Community craft downloads
Features
Read full description

Bring to life anything you can imagine from rockets and airplanes to cars and more. Automate them with a visual programming language. Explore 3D planets and download more from the community. Share your creations online. Complete contracts, conquer milestones, and unlock technology in the newly added Career Mode. AEROSPACE SANDBOX Juno: New Origins is a 3D aerospace sandbox where players can use customizable parts to construct and test rockets, planes, cars, or anything they can imagine in an environment with realistic physics across land, sea, air, and space. CAREER MODE + TECH TREE Take control of your own aerospace company and earn money and tech points as you progress through the game. Complete contracts to earn money, and discover a mixture of hand-crafted and procedural contracts that offer countless hours of new gameplay. Conquer milestones and explore landmarks to earn tech points and unlock new technology in the tech tree. Interactive tutorials are available to show how to build and operate rockets, cars, and airplanes. RESIZE AND RESHAPE PARTS Stretch and shape fuel tanks, wings, cargo bays, fairings, and nose cones with easy-to-use tools that help you create exactly what you want. Resize solar panels, landing gear, pistons, jet engines, etc to fit your needs. Paint your craft custom colors and tweak their reflectiveness, emissiveness, and texture styles. DESIGN ROCKET AND JET ENGINES Engines can be adjusted in a myriad of ways, such as changing the power cycle, combustion pressure, gimbal range, fuel type, and adjusting nozzle performance and visuals. You can customize an engine to be a power house for lift off, or to be a super optimized vacuum engine that maximizes Isp for interplanetary travel. The engine's performance affects its visuals in flight too as shown by the exhaust's expansion or contraction based on its interplay with the atmospheric pressure. Shock diamonds are pretty but they are a symptom of suboptimal engine performance! If you don't care about any of this, then you can just attach a pre-built engine and hit launch! PROGRAM YOUR CRAFTS Easily drag and drop code blocks to program your crafts to log telemetry, automate them, design your own MFD touch screens, etc. With Vizzy, a programming language designed specifically for Juno: New Origins, you can expand the capabilities of your crafts while learning programming, maths, physics, etc. REALISTIC ORBIT SIMULATION Orbits are realistically simulated and support time-warp so you don't have to wait several months to reach another planet. The Map View makes it easy to see your orbits and plan future burns, which you can use to set up future encounters with other planets or satellites. DOWNLOAD CRAFTS, SANDBOXES, AND MORE Download from a huge collection of user-uploaded crafts, sandboxes, and planets on SimpleRockets.com. Upload your own crafts and sandboxes and share them with the community. Rise through the ranks from a white level builder to a gold level builder and beyond.

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

Juno4 screens
while True4 screens

Verdict

The call

The clearest difference is rating: while True at 4.9 against Juno's 4.4. while True also leads on update cadence (every 4 days vs monthly) and price ($4.99 vs $6.99). On review sentiment, ratings volume, ads and in-app purchases 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

Juno costs $6.99 and while True $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

while True holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 1.2K and 712 respectively. Written reviews point the same way: 78% of Juno's written reviews are positive against 81% of while True's.

UpkeepUpdate frequency

Juno ships an update monthly, while True every 4 days. Both last shipped on November 6, 2026.

Scorecard4 real differences · 6 level
Juno versus while True: the parameters behind the verdict, then further details
ParameterJunowhile True
Price$6.99$4.99 — better
Rating4.4 (1.2K ratings)4.9 (712 ratings) — better
Positive reviews78.2% of reviews80.5% of reviews — better
Number of ratings1.2K — better712
Update frequencyMonthlyEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.011.0 — better
Further details — not scored
Size371 MB577 MB
Age rating4+9+
DeveloperJundroo, LLCLUDENIO LABS LTD

Customer experience

Juno

All ratings1,201 ratings
Positive83.9%
Neutral4.6%
Negative11.5%
Written reviews545 reviews
Positive78.2%
Neutral7.9%
Negative13.9%

while True

All ratings709 ratings
Positive97.6%
Neutral0.8%
Negative1.6%
Written reviews154 reviews
Positive80.5%
Neutral6.5%
Negative13.0%

User reviews

Juno

From 1.2K App Store ratings

What we love

  • 🚀 Realistic physics and graphics
  • 🔍 Highly customizable parts and designs
  • 🔬 Detailed space simulation experience
  • 👍 Smooth performance on mobile devices
  • 💡 Innovative programming/scripting features

Room to improve

  • 🐛 Frequent crashes and stability issues
  • 🕹️ Clunky and unintuitive controls, especially for building
  • 📚 Lack of comprehensive tutorials and documentation
  • 🔧 Challenging learning curve for newcomers

while True

From 712 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

Juno

Reported bugs

4 issues
  • Staging and separation issues
  • Parachute and re-entry physics problems
  • Inconsistent performance on different devices
  • Difficulty downloading and using community creations

Requested features

6 requests
  • More built-in tutorials and guidance
  • Improved camera controls and UI
  • Ability to create custom planets/moons
  • Expanded part selection and customization
  • Career mode with progression and challenges
Show 1 more
  • Multiplayer and collaborative building

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

None

Juno

No in-app purchases

None

while True

No in-app purchases

Questions

Is Juno free?
Juno costs $6.99, with no in-app purchases.
Is while True free?
while True costs $4.99, with no in-app purchases.
Which has better reviews, Juno or while True?
while True is rated higher. Juno averages 4.4 out of 5 from 1.2K ratings, while while True averages 4.9 from 712 ratings.
Do Juno or while True have ads?
Neither Juno nor while True shows ads.
Which is updated more often, Juno or while True?
Juno ships an update monthly, and while True every 4 days. Most recently, Juno was updated on November 6, 2026 and while True on November 6, 2026.

Other comparisons