COSI Science vs JGAP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
COSI Science
Explore science at home with engaging videos and hands-on activities. Participate in citizen science projects or take virtual tours. This app brings the Center of Science and Industry's educational content to your family.
- At-home science discovery
- Engaging science videos
- Hands-on science activities
- Citizen science participation
- Virtual museum tours
- Science challenges
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Check out the COSI app for fun at-home science discovery and learning! Every weekday, we provide exciting and engaging science through COSI videos and hands-on science you can try with your family at home through COSI Connects. Try a Science Challenge, participate in a Citizen Science activity, or take a virtual tour through the American Museum of Natural History Dinosaur Gallery. COSI, Columbus, Ohio's dynamic Center of Science and Industry, inspires the scientists, dreamers, and innovators of tomorrow. Opened in 1964 at Memorial Hall in downtown Columbus, COSI moved in 1999 to a new 320,000-square-foot home designed by internationally-renowned architect Arata Isozaki, creating one of the largest modern-built science centers in the United States.
JGAP
Explore the universe with this interactive guide to an astronomy park's outdoor plaza. Learn about celestial movements, star positions, and the solar system through engaging features designed for public interaction and education.
- Interactive plaza features
- Learn about the Sun and Earth's movement
- Understand star positions
- Explore the solar system's scale
- Public access to observatory and plaza
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The John Glenn Astronomy Park is an outdoor facility in the Hocking Hills State Park. It is 12 miles south of Logan, Ohio, about an hour from Columbus. On site, there is an observatory and an outdoor Plaza that is open to the public at all hours. The layout of the Plaza of the John Glenn Astronomy Park (JGAP) is designed to teach you about, and help you interact with, our universe. Our app, the JGApp, teaches you about the many features of our plaza, and how to use them to appreciate the movement of the Sun and Earth, the position of the stars, and the scale of the bodies in our solar system.
Screenshots
Verdict
The clearest difference is update cadence: JGAP at every 2 days against COSI Science's every 2 months. COSI Science's advantage is ratings volume (27 vs 6). On price, rating, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.1 for COSI Science against 4.0 for JGAP. Both are backed by a comparable volume of ratings — 27 and 6 respectively.
COSI Science ships an update every 2 months, JGAP every 2 days. The most recent releases landed on September 26, 2026 and October 10, 2026 respectively.
| Parameter | COSI Science | JGAP |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (27 ratings) — better | 4.0 (6 ratings) |
| Positive reviews | 64.3% of reviews | — |
| Number of ratings | 27 — better | 6 |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 21 MB | 84 MB |
| Age rating | 4+ | 4+ |
| Developer | COSI | SpocksClub |
Customer experience
COSI Science
JGAP
In-app purchases
COSI Science
No in-app purchases
JGAP
No in-app purchases
