# Peninsula Library System vs Butler Co. Fed. Library System

The clearest difference is ratings volume: Peninsula Library System at 3 against Butler Co. Fed. Library System's 1. On price, rating, update cadence and ads there is nothing between them.

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 — 4.0 for Peninsula Library System against 4.0 for Butler Co. Fed. Library System. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Peninsula Library System ships an update every 3 weeks, Butler Co. Fed. Library System every 5 weeks. The most recent releases landed on October 17, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Peninsula Library System | Butler Co. Fed. Library System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (3 ratings)](https://appshunter.io/ios/app/peninsula-library-system/id6670559910/reviews) | [4.0 (1 ratings)](https://appshunter.io/ios/app/butler-co-fed-library-system/id6739711544/reviews) |
| Number of ratings | **3** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 50 MB | 50 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Peninsula Library System](https://appshunter.io/developer/692170824) | [Butler Co. Fed. Library System](https://appshunter.io/developer/1786655593) |

## What reviewers say

### Peninsula Library System

[App page](https://appshunter.io/ios/app/peninsula-library-system/id6670559910)

Access multiple public libraries in San Mateo County from your mobile device. Manage holds, renew items, search the catalog, and use your digital library card for convenient access to resources.

**Highlights:** Access multiple county libraries, Place and manage holds, Renew checked out materials, Search library catalog, Digital library card

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Butler Co. Fed. Library System

[App page](https://appshunter.io/ios/app/butler-co-fed-library-system/id6739711544)

Manage your library account, search the catalog, and download eBooks and audiobooks. Place holds, renew materials, and find library hours and directions for the Butler County Federated Library System.

**Highlights:** Catalog search, Account management, Download eBooks and audiobooks, Place holds, Renew materials, Library hours and directions

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Peninsula Library System free?

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

### Is Butler Co. Fed. Library System free?

Butler Co. Fed. Library System is free to download, with no in-app purchases.

### Which has better reviews, Peninsula Library System or Butler Co. Fed. Library System?

Peninsula Library System and Butler Co. Fed. Library System are both rated 4.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do Peninsula Library System or Butler Co. Fed. Library System have ads?

Neither Peninsula Library System nor Butler Co. Fed. Library System shows ads.

### Which is updated more often, Peninsula Library System or Butler Co. Fed. Library System?

Peninsula Library System ships an update every 3 weeks, and Butler Co. Fed. Library System every 5 weeks. Most recently, Peninsula Library System was updated on October 17, 2026 and Butler Co. Fed. Library System on October 18, 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.*