Comparison

Spaceflight Simulator vs Juno

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

Head to head
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.

About

Juno

Build and test rockets, planes, and cars with realistic physics in a 3D aerospace sandbox. Progress through a career mode, unlock new technology, and share your creations with a global community.

Highlights
  • 3D aerospace sandbox
  • Realistic physics simulation
  • Career mode with tech tree
  • Customizable part resizing and reshaping
  • Download and share user-created crafts
  • Realistic orbit simulation
  • Interactive tutorials
Features
Read full description

Juno: New Origins is a 3D aerospace simulator where players can build and test rockets, planes, cars, or anything they can imagine in an environment with realistic physics across land, sea, air, and space. This is the free-to-play version, including most of the content from the Complete Edition, with the rest being available to purchase as 3 individual bundles right from the app. If you would prefer a one-time purchase, please check out "Juno: New Origins Complete Ed." on the App Store. 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, and a vast system to explore. 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, etc to fit your needs. Paint your craft custom colors and textures, and even change the material properties to make it transparent, metallic and even shiny. DOWNLOAD CRAFTS AND SHARE Download from a huge collection of user-uploaded crafts and sandboxes on https://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 and make friends from all around the world. 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. UPGRADE YOUR EXPERIENCE Bring your game to a next level with bundles that adapt to your playing style. Customize and automate your crafts with the Engineer Bundle, break physics and unleash your wildest designs with the Sandbox Bundle, or conquer the Juno System and become rich with the Career Bundle. ENGINEER BUNDLE * Become an engineer Easily tweak the parameters that define both the looks and function of rocket engines, jet engines, propellers and wheels * Become a programmer Automate your crafts with an easy to use visual programming language called Vizzy * Become a designer Create subassemblies to use them as templates when creating your crafts SANDBOX BUNDLE * Unleash the beast Get access to all the in-flight cheats such as infinite fuel and teleport, and the designer's Tinker Panel madness allowing you to change hundreds of hidden parameters * Get the full sandbox experience Get access to all the planets and launch locations in sandbox mode and keep as many crafts in flight as you want to conquer the Juno System * Explore community systems Choose between hundreds of custom systems made by other players and get ready to explore them in a couple clicks CAREER BUNDLE * Meet 3 new customers Professor von Pricklespac, General Chuck Schafer and the director of the Droo Space Center, Evelyn Shotwell * Dozens of new unique contracts Unlock new launch locations, bring payloads to orbit, explore the planets and moons of Juno... and many other new challenges to beat * Complete your career * Unlock the full Tech Tree and visit all the landmarks in the Juno System

Screenshots

Spaceflight Simulator4 screens
Juno4 screens

Verdict

The call

The clearest difference is rating: Spaceflight Simulator at 4.8 against Juno's 3.8. Spaceflight Simulator also leads on ads (none vs shown) and ratings volume (98K vs 325). 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. Spaceflight Simulator sells 10 one-off in-app purchases and Juno sells 4 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 3.8. That said, the two scores are not equally well evidenced: Spaceflight Simulator has 98K ratings behind it against 325, so its average is the more settled of the two. Written reviews point the same way: 85% of Spaceflight Simulator's written reviews are positive against 62% of Juno's.

UpkeepUpdate frequency

Spaceflight Simulator ships an update every 9 days, Juno monthly. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

Scorecard5 real differences · 5 level
Spaceflight Simulator versus Juno: the parameters behind the verdict, then further details
ParameterSpaceflight SimulatorJuno
PriceFreeFree
Rating4.8 (98K ratings) — better3.8 (325 ratings)
Positive reviews85.3% of reviews — better61.8% of reviews
Number of ratings98K — better325
Update frequencyEvery 9 days — betterMonthly
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.014.0 — better
Further details — not scored
Size172 MB412 MB
Age rating4+4+
DeveloperSpaceflight Simulator UK LtdJundroo, LLC

Customer experience

Spaceflight Simulator

All ratings97,665 ratings
Positive96.3%
Neutral1.7%
Negative2.0%
Written reviews4,884 reviews
Positive85.3%
Neutral5.1%
Negative9.6%

Juno

All ratings309 ratings
Positive67.6%
Neutral9.7%
Negative22.7%
Written reviews272 reviews
Positive61.8%
Neutral9.6%
Negative28.7%

User reviews

Spaceflight Simulator

From 98K 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

Juno

From 325 App Store ratings

What we love

  • 🚀 Great graphics
  • 👍 Interesting and fun gameplay
  • 🚀 Impressive 3D simulation
  • 👍 Detailed rocket/plane building
  • 🚀 Realistic physics

Room to improve

  • 🐛 Buggy and crashes frequently
  • 🔧 Complicated controls and UI, especially on mobile
  • 💰 Paywall for many features
  • 🔧 Lack of tutorials or guidance for beginners
  • 🔧 Difficult to delete or modify existing builds

Bugs and requests

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

Juno

Reported bugs

5 issues
  • Engines not igniting properly
  • Inability to restore purchases
  • Sandbox mode missing key parts
  • Severe performance issues on some devices
  • Inconsistent part movement and attachment

Requested features

5 requests
  • Add more plane and rocket parts
  • Improve mobile optimization and controls
  • Implement a more comprehensive tutorial system
  • Add a 'delete all' or 'clear' option
  • Introduce a free sandbox mode with all features unlocked

In-app purchases

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
4 purchases

Juno

One-time4
  • Engineer Bundle$0.99
  • Remove Ads$1.99
  • Sandbox Bundle$2.99
Show 1 more
  • Career Bundle$4.99

Questions

Is Spaceflight Simulator free?
Spaceflight Simulator is free to download, with in-app purchases available.
Is Juno free?
Juno is free to download, with in-app purchases available.
Which has better reviews, Spaceflight Simulator or Juno?
Spaceflight Simulator is rated higher. Spaceflight Simulator averages 4.8 out of 5 from 98K ratings, while Juno averages 3.8 from 325 ratings.
Do Spaceflight Simulator or Juno have ads?
Juno shows ads; Spaceflight Simulator does not.
Which is updated more often, Spaceflight Simulator or Juno?
Spaceflight Simulator ships an update every 9 days, and Juno monthly. Most recently, Spaceflight Simulator was updated on October 29, 2026 and Juno on October 27, 2026.

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