# RDP Library vs COJ Library

The clearest difference is update cadence: COJ Library at fortnightly against RDP Library's every 44 months. COJ Library also leads on iOS requirement (10.0 vs 12.1). 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.

RDP Library ships an update every 44 months, COJ Library fortnightly. The most recent releases landed on October 3, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | RDP Library | COJ Library |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 44 months | **Fortnightly** |
| Size | 28 MB | 30 MB |
| Requires iOS | 12.1 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [BOOKDOSE COMPANY LIMITED](https://appshunter.io/developer/459445000) | [Loxley Orbit Public Company Limited](https://appshunter.io/developer/950919208) |

## What reviewers say

### RDP Library

[App page](https://appshunter.io/ios/app/rdp-library/id1298386562)

**Features:** macOS Compatibility

**In-app purchases:** none


### COJ Library

[App page](https://appshunter.io/ios/app/coj-library/id6447178622)

**In-app purchases:** none


## Frequently asked questions

### Is RDP Library free?

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

### Is COJ Library free?

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

### Do RDP Library or COJ Library have ads?

Neither RDP Library nor COJ Library shows ads.

### Which is updated more often, RDP Library or COJ Library?

RDP Library ships an update every 44 months, and COJ Library fortnightly. Most recently, RDP Library was updated on October 3, 2026 and COJ Library on October 16, 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.*