# IPST Catalog vs TK Read

The clearest difference is update cadence: TK Read at every 3 weeks against IPST Catalog's every 6 months. IPST Catalog's advantage is iOS requirement (9.0 vs 15.6). 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.

IPST Catalog ships an update every 6 months, TK Read every 3 weeks. The most recent releases landed on September 28, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | IPST Catalog | TK Read |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (111 ratings)](https://appshunter.io/ios/app/tk-read/id1599703016/reviews)** |
| Number of ratings | — | **111** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 75 MB | 98 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [The Institute for the Promotion of Teaching Science and Technology (IPST)](https://appshunter.io/developer/643591471) | [Thailand Knowledge Park](https://appshunter.io/developer/1215512862) |

## What reviewers say

### IPST Catalog

[App page](https://appshunter.io/ios/app/ipst-catalog/id772847993)

**Features:** macOS Compatibility

**In-app purchases:** none


### TK Read

[App page](https://appshunter.io/ios/app/tk-read/id1599703016)

Access a digital library with eBooks, audiobooks, eMagazines, and online courses. Learn new skills anytime, anywhere with this free resource. Discover content from leading Thai publishers and enjoy a convenient reading and learning experience.

**Highlights:** eBooks from top Thai publishers, Audiobooks for listening, eMagazines for trends, Online courses for skill development, Search, borrow, and read features, Accessible on multiple devices

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

**In-app purchases:** none


## Frequently asked questions

### Is IPST Catalog free?

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

### Is TK Read free?

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

### Do IPST Catalog or TK Read have ads?

Neither IPST Catalog nor TK Read shows ads.

### Which is updated more often, IPST Catalog or TK Read?

IPST Catalog ships an update every 6 months, and TK Read every 3 weeks. Most recently, IPST Catalog was updated on September 28, 2026 and TK Read on October 15, 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.*