# IPST Chemistry E vs AR สสวท. คณิต ประถม

The clearest difference is update cadence: AR สสวท. คณิต ประถม at every 3 weeks against IPST Chemistry E's every 5 months. IPST Chemistry E's advantage is iOS requirement (8.0 vs 13.0). 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 Chemistry E ships an update every 5 months, AR สสวท. คณิต ประถม every 3 weeks. Both last shipped on October 26, 2026.

## The numbers

| Metric | IPST Chemistry E | AR สสวท. คณิต ประถม |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Size | 43 MB | 225 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kathi Studio Co.,Ltd.](https://appshunter.io/developer/436981312) | [The Institute for the Promotion of Teaching Science and Technology (IPST)](https://appshunter.io/developer/643591471) |

## What reviewers say

### IPST Chemistry E

[App page](https://appshunter.io/ios/app/ipst-chemistry-e-book-polymer/id1027859195)

**In-app purchases:** none


### AR สสวท. คณิต ประถม

[App page](https://appshunter.io/ios/app/ar/id1462253789)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IPST Chemistry E free?

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

### Is AR สสวท. คณิต ประถม free?

AR สสวท. คณิต ประถม is free to download, with no in-app purchases.

### Do IPST Chemistry E or AR สสวท. คณิต ประถม have ads?

Neither IPST Chemistry E nor AR สสวท. คณิต ประถม shows ads.

### Which is updated more often, IPST Chemistry E or AR สสวท. คณิต ประถม?

IPST Chemistry E ships an update every 5 months, and AR สสวท. คณิต ประถม every 3 weeks. Most recently, IPST Chemistry E was updated on October 26, 2026 and AR สสวท. คณิต ประถม on October 26, 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.*