Comparison

SOS Explorer vs DIY Solar System

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

Head to head
About

SOS Explorer

Explore interactive animated datasets of Earth and space phenomena, from planetary rings to climate change models. This app brings complex environmental processes to life in an intuitive and captivating way, making learning accessible anywhere.

Highlights
  • Streaming high-resolution datasets
  • Educational videos
  • User-guided tours
  • Analysis tools
  • 100+ datasets
  • Global and flat map views
Features
Read full description

SOS Explorer (SOSx) Mobile is a free, flat screen mobile app version of the popular NOAA Science On a Sphere (SOS). This revolutionary software takes SOS datasets, usually only seen on a 6-foot sphere in large museum spaces, and makes them accessible, portable, and interactive anywhere. SOSx Mobile can immerse the user in animated images such as Saturn’s rings, atmospheric storms, climate change, and ocean temperatures to help explain sometimes complex environmental processes in a way that is intuitive, captivating, interactive, and entertaining. A desktop version, called SOS Explorer, is also available. Thank you for using SOS Explorer (SOSx) Mobile. We are committed to continually improving our software and providing you with an engaging and educational experience. We hope you enjoy the new features and enhancements in version 1.2! Please continue to share your feedback with us as we work on improvements. We appreciate your patience and support. Features include: • Streaming, high-resolution datasets • Educational videos • User-guided tours • Analysis tools • 100+ datasets • Global and flat map views Sample datasets: • Recent Hurricane Seasons • Bird Migration • Earthquake Activity • Snow and Ice • Ocean Currents • Historical Tsunamis • Facebook Friendships • Air Traffic • Planets of the Solar System • Climate Change Models • 360 Underwater Imagery • Narrated Movies • ...and so much more!

About

DIY Solar System

Explore the solar system with interactive activities and an augmented reality planet walk. Learn about space travel, design a moon base, and identify celestial objects. Developed by leading science institutions, this app makes learning about space engaging for families and educators.

Highlights
  • Interactive space activities
  • Augmented reality planet walk
  • Design a moon base
  • Grow a space garden
  • Control a Mars rover
  • In or Out space game
  • NASA imagery
Features
Read full description

DIY Solar System makes it easy for families and educators to explore the solar system from anywhere, anytime! The app was developed by the Children’s Creativity Museum, Sciencenter, and Museum of Life and Science, in partnership with UC Berkeley’s The Lawrence Hall of Science. INTERACTIVE ACTIVITIES DIY Solar System includes 11 easy-to-use activities to learn about space travel, living in space, and the unique objects that make up the planetary system we call home. Design a Moon base, grow your own space garden, or experience what it’s like to control a rover on Mars! Each activity includes step-by-step instructions that have been tested by educators, kids, and families. Activity materials are easily available and inexpensive—you may already have many of them in your home! AUGMENTED REALITY PLANET WALK Don’t have the time to travel several billion miles to reach Neptune? Try dropping a scale version of the solar system outside your home to start a walk that will show you planets, dwarf planets, and asteroids. At each stop, examine the space object up close using real images from NASA. Don’t forget to take a space selfie with your favorite planet! IN OR OUT GAME Quickly scan awe-inspiring images of space objects from NASA’s Earth and space observatories to decide if the objects are in or out of the solar system. While the solar system is vast, it only represents a tiny corner of the universe. After you have mastered your solar system knowledge, challenge yourself to a new round of objects in or out of our home galaxy, the Milky Way. Funding Source This work was supported by NASA under award number 80NSSC21M0082. Any opinions, findings, conclusions, or recommendations expressed in these programs are those of the author and do not reflect the views of NASA. Compatibility Requires iOS 12.0 or later. Compatible with iPhone and iPad. Rated 4+.

Screenshots

SOS Explorer4 screens
DIY Solar System4 screens

Verdict

The call

The clearest difference is update cadence: DIY Solar System at every 2 months against SOS Explorer's every 11 months. DIY Solar System also leads on review sentiment (100% vs 86%). SOS Explorer's advantage is rating (4.7 vs 4.5). On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

SOS Explorer holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 20 and 16 respectively. Written reviews complicate that: 86% of SOS Explorer's written reviews are positive against 100% of DIY Solar System's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

SOS Explorer ships an update every 11 months, DIY Solar System every 2 months. The most recent releases landed on September 7, 2026 and June 3, 2026 respectively.

Scorecard3 real differences · 7 level
SOS Explorer versus DIY Solar System: the parameters behind the verdict, then further details
ParameterSOS ExplorerDIY Solar System
PriceFreeFree
Rating4.7 (20 ratings) — better4.5 (16 ratings)
Positive reviews85.7% of reviews100.0% of reviews — better
Number of ratings20 — better16
Update frequencyEvery 11 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.012.0
Further details — not scored
Size249 MB180 MB
Age rating4+4+
DeveloperUniversity of Colorado BoulderThe Lawrence Hall of Science

Customer experience

SOS Explorer

All ratings20 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

DIY Solar System

All ratings16 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

SOS Explorer

No in-app purchases

None

DIY Solar System

No in-app purchases

Questions

Is SOS Explorer free?
SOS Explorer is free to download, with no in-app purchases.
Is DIY Solar System free?
DIY Solar System is free to download, with no in-app purchases.
Which has better reviews, SOS Explorer or DIY Solar System?
SOS Explorer is rated higher. SOS Explorer averages 4.7 out of 5 from 20 ratings, while DIY Solar System averages 4.5 from 16 ratings.
Do SOS Explorer or DIY Solar System have ads?
Neither SOS Explorer nor DIY Solar System shows ads.
Which is updated more often, SOS Explorer or DIY Solar System?
SOS Explorer ships an update every 11 months, and DIY Solar System every 2 months. Most recently, SOS Explorer was updated on September 7, 2026 and DIY Solar System on June 3, 2026.

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