# Allegheny County Libraries vs BookSylo

The clearest difference is update cadence: BookSylo at every 9 days against Allegheny County Libraries's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

Allegheny County Libraries ships an update every 3 weeks, BookSylo every 9 days. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Allegheny County Libraries | BookSylo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (16 ratings)](https://appshunter.io/ios/app/allegheny-county-libraries/id1605208645/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 25.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | Free | — |
| Size | 24 MB | 39 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Capira Technologies, LLC.](https://appshunter.io/developer/1010559443) | [Data Pro Analytics LLC](https://appshunter.io/developer/6790941366) |

## What reviewers say

### Allegheny County Libraries

[App page](https://appshunter.io/ios/app/allegheny-county-libraries/id1605208645)

Manage your library experience on the go with this app. Search the catalog, reserve items, track checkouts, and discover events. Access library hours, locations, and online learning resources from any of the participating Allegheny County libraries.

**Highlights:** Search library catalog, Reserve items, Manage multiple library accounts, Track checkouts and holds, View and register for events, Access library hours and locations, Use online learning resources

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

**In-app purchases:** none


### BookSylo

[App page](https://appshunter.io/ios/app/booksylo/id6790941364)

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

**In-app purchases:** none


## Frequently asked questions

### Is Allegheny County Libraries free?

Allegheny County Libraries is free to download, with no in-app purchases.

### Is BookSylo free?

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

### Do Allegheny County Libraries or BookSylo have ads?

Neither Allegheny County Libraries nor BookSylo shows ads.

### Which is updated more often, Allegheny County Libraries or BookSylo?

Allegheny County Libraries ships an update every 3 weeks, and BookSylo every 9 days. Most recently, Allegheny County Libraries was updated on October 24, 2026 and BookSylo on October 12, 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.*