# AR สสวท. คณิต ประถม vs Opposite Words (Thai)

The clearest difference is ads: AR สสวท. คณิต ประถม at none against Opposite Words (Thai)'s shown. AR สสวท. คณิต ประถม also leads on update cadence (every 3 weeks vs every 27 months) and iOS requirement (13.0 vs 15.0). On price, 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.

AR สสวท. คณิต ประถม ships an update every 3 weeks, Opposite Words (Thai) every 27 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | AR สสวท. คณิต ประถม | Opposite Words (Thai) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 27 months |
| Size | 225 MB | 33 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The Institute for the Promotion of Teaching Science and Technology (IPST)](https://appshunter.io/developer/643591471) | [Kittipong Intaboot](https://appshunter.io/developer/972195994) |

## What reviewers say

### AR สสวท. คณิต ประถม

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Opposite Words (Thai)

[App page](https://appshunter.io/ios/app/opposite-words-thai/id1619625200)

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

**In-app purchases:** none


## Frequently asked questions

### Is AR สสวท. คณิต ประถม free?

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

### Is Opposite Words (Thai) free?

Opposite Words (Thai) is free to download, with no in-app purchases.

### Do AR สสวท. คณิต ประถม or Opposite Words (Thai) have ads?

Opposite Words (Thai) shows ads; AR สสวท. คณิต ประถม does not.

### Which is updated more often, AR สสวท. คณิต ประถม or Opposite Words (Thai)?

AR สสวท. คณิต ประถม ships an update every 3 weeks, and Opposite Words (Thai) every 27 months. Most recently, AR สสวท. คณิต ประถม was updated on October 26, 2026 and Opposite Words (Thai) on October 24, 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.*