8 Planets

4.6
134 reviews
10K+
Downloads
Content rating
Everyone
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About this app

This is the free version of 8 PLANETS with limitations to the facts and quiz sections. Otherwise fully functional with no advertisements.

Visit the planets to discover their properties and the relationships between these. Answer questions that will test and improve your knowledge. If you’re 5 or 75 and interested in astronomy or science in general, try 8 PLANETS and learn more about our wonderful solar system.

FEATURES
• Aesthetic views of the planets with realistic details like equatorial bulge and shadows on the rings of Saturn.
• Lots of buttons to press. Fun for kids of all ages!
• The facts section includes a wealth of information.
• You can decide which units planet properties are displayed in. Centigrade or Kelvin degrees, astronomical units or millions of kilometers …
• You can make side-by-side comparisons of planets and planet characteristics. This will help you make your own AHA! discoveries and learn things that you will remember. Why do Earth’s rotation time and length of day differ? Does the extreme bulge at Saturn’s equator have anything to do with its relatively low density and fast rotation time? …
• You can of course toggle on/off preferences such as music, stars, orbit visualization types …
• You can change the speeds of the rotation and orbit animations. A fun feature for younger children. Watch the inner planets race around the sun!
• Last but not least, educational quizzes for 1-4 players. You select the subjects and which planets to include. Use it at home or in the classroom at school.

Hopefully you will enjoy 8 PLANETS, whether you’re a teacher, student or amateur astronomer. It’s quite different from all of the other solar system apps. It fills an empty niche. Looking forward to your suggestions for improvements and new features.

Are you a teacher, and want to use 8 PLANETS in your classroom? Please contact Norway Apps for access to the full version.
Updated on
Mar 8, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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Ratings and reviews

4.5
104 reviews
A Google user
March 10, 2020
I am giving a rating of 3 because I do not know if it is updated or not. I rate Astronomy apps by the updated information on the moon's and dwarf planets. Since those are not accessible, I will not recommend this app.
16 people found this review helpful
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Norway Apps
March 30, 2020
Thanks for your review. Sorry to hear that you won't be recommending 8 Planets. Moons and dwarf planets are not the focus of this app.
A Google user
February 7, 2019
Uninstalling. I do not know if this app is accurate or not. I am an Astronomy fanatic. I cannot access the info about the satellites. So, I gave this app only 3 stars.
21 people found this review helpful
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Norway Apps
February 16, 2019
OK, you will need another type of solar system app if you require high precision. Sorry 8 planets did not meet with your expectations.
Krizzana Rcmn
April 30, 2024
its great and i love this app i always play this game!
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What's new

1.3
- Extended planet data
- Immersive view for phones
- Improved movement
1.2.2
- Minor update
1.2.1
- Simple volume control
1.2
- New planet textures
- Improved text, graphics&sound
- Improved planet selection
1.1.3
- Changed text and images
1.1.2
- Planets selected from within animation
1.1.1
- Quiz difficulty levels
- Planets selected from "fact-info"
- Sound and animation improvements
1.1.0
- Facts panel displays the planets and definitions of planetary properties.
- Layout improved