Vrain by Watec vs Biển Vô Cực
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Vrain by Watec
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.
- View rainfall at provincial stations
- View nationwide rainfall data
- Receive rainfall alerts
- Monitor rainfall thresholds
Read full descriptionHide full description
Vrain introduces a more complete real-time rain and weather monitoring experience powered by live observation data across Vietnam. Track real-time rainfall directly from actual monitoring stations nationwide. Instantly view rain conditions, weather, UV index, wind and hourly or daily rain forecasts for locations across Vietnam. Key features: • Real-time rainfall monitoring from nationwide stations • View live observation rainfall data by area • Hourly and daily rain forecasts • Weather, temperature, UV and wind tracking • Severe rain and abnormal weather alerts • Live rain map with continuous updates • Save and monitor favorite locations • Fast weather alert notifications New in Version 5.0.0: • Experimental AI assistant for asking about rain and weather in Vietnam • Refreshed and more modern interface • Faster map and data loading performance • Improved real-time rain tracking experience VRain is built on real environmental observation data collected from a large-scale monitoring network operating across Vietnam, helping users access reliable weather and rainfall information quickly and conveniently.
Biển Vô Cực
This app provides tide and lunar calendar information for fishermen, seafarers, and ocean enthusiasts. It serves as a lookup tool for marine data, helping users plan their activities related to the sea.
- Tide calendar lookup
- Lunar calendar information
- Marine data for fishermen
- Tool for seafarers
- App for ocean nature lovers
Read full descriptionHide full description
Lịch Con Nước - Lịch Thủy Triều - Biển Vô Cực là công cụ tra cứu Lịch Con Nước - Lịch Thuỷ Triều cho ngư dân, người đi biển và cộng đồng yêu thiên nhiên biển cả.
Screenshots
Verdict
The clearest difference is iOS requirement: Biển Vô Cực at 13.0 against Vrain by Watec's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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, Biển Vô Cực every 5 days. The most recent releases landed on October 29, 2026 and October 18, 2026 respectively.
| Parameter | Vrain by Watec | Biển Vô Cực |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 20.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 9 days | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 54 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | RESOURCE WATER CONSULTANT AND DEVELOPMENT TECHNICAL JOINT STOCK COMPANY | Dinh Tuan |
Customer experience
Vrain by Watec
Biển Vô Cực
In-app purchases
Vrain by Watec
No in-app purchases
Biển Vô Cực
No in-app purchases
Questions
Is Vrain by Watec free?
Is Biển Vô Cực free?
Do Vrain by Watec or Biển Vô Cực have ads?
Which is updated more often, Vrain by Watec or Biển Vô Cực?
Other comparisons
