# Vrain by Watec vs CMS ĐBSCL

The clearest difference is update cadence: Vrain by Watec at every 9 days against CMS ĐBSCL's every 4 months. 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.

Vrain by Watec ships an update every 9 days, CMS ĐBSCL every 4 months. The most recent releases landed on October 18, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Vrain by Watec | CMS ĐBSCL |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 4 months |
| Monetization | Free | — |
| Size | 54 MB | 25 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RESOURCE WATER CONSULTANT AND DEVELOPMENT TECHNICAL JOINT STOCK COMPANY](https://appshunter.io/developer/1559532093) | [SOUTHERN INSTITUTE OF WATER RESOURCES RESEACH](https://appshunter.io/developer/1628113690) |

## What reviewers say

### Vrain by Watec

[App page](https://appshunter.io/ios/app/vrain-by-watec/id1241610832)

This application provides real-time rainfall data and alerts for provinces across Vietnam. Users can view rainfall at various measurement stations nationwide or within a specific province. Receive notifications when rainfall exceeds predefined thresholds.

**Highlights:** View rainfall at provincial stations, View nationwide rainfall data, Receive rainfall alerts, Monitor rainfall thresholds

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

**In-app purchases:** none


### CMS ĐBSCL

[App page](https://appshunter.io/ios/app/cms-bscl/id6742399064)

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

**In-app purchases:** none


## Frequently asked questions

### Is Vrain by Watec free?

Vrain by Watec is free to download, with no in-app purchases.

### Is CMS ĐBSCL free?

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

### Do Vrain by Watec or CMS ĐBSCL have ads?

Neither Vrain by Watec nor CMS ĐBSCL shows ads.

### Which is updated more often, Vrain by Watec or CMS ĐBSCL?

Vrain by Watec ships an update every 9 days, and CMS ĐBSCL every 4 months. Most recently, Vrain by Watec was updated on October 18, 2026 and CMS ĐBSCL on October 19, 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.*