# ThaiWater  รู้น้ำ รู้อากาศ vs RIWI

The clearest difference is update cadence: ThaiWater  รู้น้ำ รู้อากาศ at weekly against RIWI's every 3 weeks. 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.

ThaiWater  รู้น้ำ รู้อากาศ ships an update weekly, RIWI every 3 weeks. The most recent releases landed on October 13, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | ThaiWater  รู้น้ำ รู้อากาศ | RIWI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/thaiwater/id1097487200/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free | — |
| Size | 83 MB | 55 MB |
| Requires iOS | **15.4** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hydro Informatics Institute](https://appshunter.io/developer/1741701510) | [Royal Irrigation Department](https://appshunter.io/developer/1161273398) |

## What reviewers say

### ThaiWater  รู้น้ำ รู้อากาศ

[App page](https://appshunter.io/ios/app/thaiwater/id1097487200)

Access national water data to track water situations. This application is developed by the Hydro Informatics Institute under the Ministry of Higher Education, Science, Research and Innovation.

**Highlights:** Track water situations, Access national water data, Information from national water database, Developed by Hydro Informatics Institute

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

**In-app purchases:** none


### RIWI

[App page](https://appshunter.io/ios/app/riwi/id6741211501)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ThaiWater  รู้น้ำ รู้อากาศ free?

ThaiWater  รู้น้ำ รู้อากาศ is free to download, with no in-app purchases.

### Is RIWI free?

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

### Do ThaiWater  รู้น้ำ รู้อากาศ or RIWI have ads?

Neither ThaiWater  รู้น้ำ รู้อากาศ nor RIWI shows ads.

### Which is updated more often, ThaiWater  รู้น้ำ รู้อากาศ or RIWI?

ThaiWater  รู้น้ำ รู้อากาศ ships an update weekly, and RIWI every 3 weeks. Most recently, ThaiWater  รู้น้ำ รู้อากาศ was updated on October 13, 2026 and RIWI on October 18, 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.*