# cloudCheck mobile vs PDF Library eBook Reader

The clearest difference is in-app purchases: cloudCheck mobile at none against PDF Library eBook Reader's 1. cloudCheck mobile also leads on iOS requirement (15.6 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. PDF Library eBook Reader sells 1 one-off in-app purchase. cloudCheck mobile asks for nothing beyond the download.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 29, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | cloudCheck mobile | PDF Library eBook Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (12 ratings)](https://appshunter.io/ios/app/pdf-library-ebook-reader/id6503659712/reviews)** |
| Number of ratings | — | **12** |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | — | Free with in-app purchases |
| Size | 7 MB | 8 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Bibliotheca Ltd](https://appshunter.io/developer/631374077) | [Verbia Systems](https://appshunter.io/developer/1025294134) |

## What reviewers say

### cloudCheck mobile

[App page](https://appshunter.io/ios/app/cloudcheck-mobile/id6461972307)

**In-app purchases:** none


### PDF Library eBook Reader

[App page](https://appshunter.io/ios/app/pdf-library-ebook-reader/id6503659712)

Effortlessly read, organize, and sync your PDF eBooks across devices. Features include flexible display options, dark mode, auto-save reading progress, and customizable collections. An optional Pro version unlocks advanced organization tools.

**Highlights:** Organize PDF collection, Sync across devices, Flexible display options, Dark mode reading, Auto-save reading progress, Customizable collections (Pro)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Library Pro | $19.99 | one-time |


## Frequently asked questions

### Is cloudCheck mobile free?

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

### Is PDF Library eBook Reader free?

PDF Library eBook Reader is free to download, with in-app purchases available.

### Do cloudCheck mobile or PDF Library eBook Reader have ads?

Neither cloudCheck mobile nor PDF Library eBook Reader shows ads.

### Which is updated more often, cloudCheck mobile or PDF Library eBook Reader?

cloudCheck mobile ships an update monthly, and PDF Library eBook Reader monthly. Most recently, cloudCheck mobile was updated on September 29, 2026 and PDF Library eBook Reader on October 10, 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.*