# COSI Science vs UA Library

The clearest difference is review sentiment: COSI Science at 64% against UA Library's 0%. COSI Science also leads on rating (4.0 vs 3.1) and ratings volume (28 vs 8). On price, update cadence, ads and in-app purchases there is nothing between them.

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

COSI Science holds the better App Store score, 4.0 against 3.1. Both are backed by a comparable volume of ratings — 28 and 8 respectively. Written reviews point the same way: 64% of COSI Science's written reviews are positive against 0% of UA Library's.

COSI Science ships an update every 2 months, UA Library every 3 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | COSI Science | UA Library |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (28 ratings)](https://appshunter.io/ios/app/cosi-science/id1251512700/reviews)** | [3.1 (8 ratings)](https://appshunter.io/ios/app/ua-library/id1467203375/reviews) |
| Number of ratings | **28** | 8 |
| Positive reviews | **64.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 21 MB | 52 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [COSI](https://appshunter.io/developer/1251512698) | [Upper Arlington Public Library](https://appshunter.io/developer/533656135) |

## What reviewers say

### COSI Science

[App page](https://appshunter.io/ios/app/cosi-science/id1251512700)

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.

**Highlights:** At-home science discovery, Engaging science videos, Hands-on science activities, Citizen science participation, Virtual museum tours, Science challenges

**Features:** macOS Compatibility

**In-app purchases:** none


### UA Library

[App page](https://appshunter.io/ios/app/ua-library/id1467203375)

Access your library account, search the catalog for books, movies, and music, and download digital content. Discover and register for events, use mobile printing, and book meeting spaces. Scan book ISBNs to check availability in the collection.

**Highlights:** Search library catalog, Manage account (holds, checkouts, renewals), Download eBooks and audiobooks, Register for library events, Mobile printing, Book meeting spaces, Scan ISBN for availability

**In-app purchases:** none


## Frequently asked questions

### Is COSI Science free?

COSI Science is free to download, with no in-app purchases.

### Is UA Library free?

UA Library is free to download, with no in-app purchases.

### Which has better reviews, COSI Science or UA Library?

COSI Science is rated higher. COSI Science averages 4.0 out of 5 from 28 ratings, while UA Library averages 3.1 from 8 ratings.

### Do COSI Science or UA Library have ads?

Neither COSI Science nor UA Library shows ads.

### Which is updated more often, COSI Science or UA Library?

COSI Science ships an update every 2 months, and UA Library every 3 months. Most recently, COSI Science was updated on October 24, 2026 and UA Library on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*