# ACE Library vs CountyCat Mobile App

The clearest difference is rating: CountyCat Mobile App at 3.3 against ACE Library's 2.6. CountyCat Mobile App also leads on review sentiment (23% vs 3%) and update cadence (every 2 months vs every 5 months). On price, ratings volume, 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.

CountyCat Mobile App holds the better App Store score, 3.3 against 2.6. Both are backed by a comparable volume of ratings — 36 and 30 respectively. Written reviews point the same way: 3% of ACE Library's written reviews are positive against 23% of CountyCat Mobile App's.

ACE Library ships an update every 5 months, CountyCat Mobile App every 2 months. Both last shipped on October 7, 2026.

## The numbers

| Metric | ACE Library | CountyCat Mobile App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (36 ratings)](https://appshunter.io/ios/app/ace-library/id894077537/reviews) | **[3.3 (30 ratings)](https://appshunter.io/ios/app/countycat-mobile-app/id1491066768/reviews)** |
| Number of ratings | **36** | 30 |
| Positive reviews | 3.3% of reviews | **23.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 75 MB | 50 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [American Council on Exercise (ACE)](https://appshunter.io/developer/816467405) | [Milwaukee County Federated Library System](https://appshunter.io/developer/599017273) |

## What reviewers say

### ACE Library

[App page](https://appshunter.io/ios/app/ace-library/id894077537)

Access and store purchased eBooks from ACE. Review digital texts to prepare for certification exams. Includes additional ACE ProSource articles for further reading.

**Highlights:** Exclusive eBook access, Digital text review, Certification exam preparation, ACE ProSource articles, Offline reading

**Features:** macOS Compatibility

**In-app purchases:** none


### CountyCat Mobile App

[App page](https://appshunter.io/ios/app/countycat-mobile-app/id1491066768)

Manage your library account, renew borrowed items, and search the catalog. Discover new books, find library hours, and access a variety of online resources.

**Highlights:** Check library account, Renew materials, Search catalog, Place requests, Discover new titles, View library hours, Access online resources

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ACE Library free?

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

### Is CountyCat Mobile App free?

CountyCat Mobile App is free to download, with no in-app purchases.

### Which has better reviews, ACE Library or CountyCat Mobile App?

CountyCat Mobile App is rated higher. ACE Library averages 2.6 out of 5 from 36 ratings, while CountyCat Mobile App averages 3.3 from 30 ratings.

### Do ACE Library or CountyCat Mobile App have ads?

Neither ACE Library nor CountyCat Mobile App shows ads.

### Which is updated more often, ACE Library or CountyCat Mobile App?

ACE Library ships an update every 5 months, and CountyCat Mobile App every 2 months. Most recently, ACE Library was updated on October 7, 2026 and CountyCat Mobile App on October 7, 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.*