Comparison

DIY Solar System vs SJSFI Mobile App

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

Head to head
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+.

About

SJSFI Mobile App

Features
Read full description

SJSFI Mobile App is a free app for anyone in Saint Joseph School Foundation Inc. It makes it easy for students and parents to get announcements and updates from the school. The app saves time as it replaces the need for face-to-face interactions for common inquiries. • Authentication – Users are sent a code to their mobile number to ensure that only they can see the information relating to their account. • Saves time – It replaces the need for face-to-face interactions through the use of public feeds of announcements and calendar of activities. • Organized information – Common inquiries may be answered with the app. Students and parents are able to retrieve information from the respective tabs without hassle.

Screenshots

DIY Solar System4 screens
SJSFI Mobile App4 screens

Verdict

The call

DIY Solar System and SJSFI Mobile App are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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.

UpkeepUpdate frequency

DIY Solar System ships an update every 2 months, SJSFI Mobile App every 3 months. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

ScorecardNo meaningful differences
DIY Solar System versus SJSFI Mobile App: the parameters behind the verdict, then further details
ParameterDIY Solar SystemSJSFI Mobile App
PriceFreeFree
Rating4.5 (17 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings17 — better—
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size180 MB70 MB
Age rating4+12+
DeveloperThe Lawrence Hall of ScienceLivro Systems Incorporated

In-app purchases

None

DIY Solar System

No in-app purchases

None

SJSFI Mobile App

No in-app purchases

Questions

Is DIY Solar System free?
DIY Solar System is free to download, with no in-app purchases.
Is SJSFI Mobile App free?
SJSFI Mobile App is free to download, with no in-app purchases.
Do DIY Solar System or SJSFI Mobile App have ads?
Neither DIY Solar System nor SJSFI Mobile App shows ads.
Which is updated more often, DIY Solar System or SJSFI Mobile App?
DIY Solar System ships an update every 2 months, and SJSFI Mobile App every 3 months. Most recently, DIY Solar System was updated on October 24, 2026 and SJSFI Mobile App on October 16, 2026.

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