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.
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.
- 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
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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+.
SJSFI Mobile App
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
| Parameter | DIY Solar System | SJSFI Mobile App |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (17 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 17 — better | — |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 180 MB | 70 MB |
| Age rating | 4+ | 12+ |
| Developer | The Lawrence Hall of Science | Livro Systems Incorporated |
In-app purchases
DIY Solar System
No in-app purchases
SJSFI Mobile App
No in-app purchases
Questions
Is DIY Solar System free?
Is SJSFI Mobile App free?
Do DIY Solar System or SJSFI Mobile App have ads?
Which is updated more often, DIY Solar System or SJSFI Mobile App?
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