# KKU Library vs MOD LINK Gatekeeper

The clearest difference is iOS requirement: KKU Library at 8.3 against MOD LINK Gatekeeper's 12.1. On price, update cadence, 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.

KKU Library ships an update every 6 months, MOD LINK Gatekeeper every 9 months. The most recent releases landed on October 19, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | KKU Library | MOD LINK Gatekeeper |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 9 months |
| Size | 8 MB | 51 MB |
| Requires iOS | **8.3** | 12.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Khon Kaen University](https://appshunter.io/developer/592053529) | [King Mongkut's University of Technology Thonburi](https://appshunter.io/developer/1149802599) |

## What reviewers say

### KKU Library

[App page](https://appshunter.io/ios/app/kku-library/id1016217918)

**Features:** macOS Compatibility

**In-app purchases:** none


### MOD LINK Gatekeeper

[App page](https://appshunter.io/ios/app/mod-link-gatekeeper/id1614778486)

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

**In-app purchases:** none


## Frequently asked questions

### Is KKU Library free?

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

### Is MOD LINK Gatekeeper free?

MOD LINK Gatekeeper is free to download, with no in-app purchases.

### Do KKU Library or MOD LINK Gatekeeper have ads?

Neither KKU Library nor MOD LINK Gatekeeper shows ads.

### Which is updated more often, KKU Library or MOD LINK Gatekeeper?

KKU Library ships an update every 6 months, and MOD LINK Gatekeeper every 9 months. Most recently, KKU Library was updated on October 19, 2026 and MOD LINK Gatekeeper on October 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*