# Raining Bell — Radar warning technology

> Advanced weather forecasting with early disaster warnings and voice assistant. (iPhone/iPad app by ThinkYes Technology Co., Ltd..)

- Source: https://appshunter.io/ios/app/raining-bell/id1519965957 (this page in markdown: same URL + `.md`)
- Developer: [ThinkYes Technology Co., Ltd.](https://appshunter.io/developer/1485389027)
- Category: Weather
- Price: Free
- Rating: 5.00/5 from 3 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 10 MB
- Languages: American English, Chinese (Traditional, Taiwan)
- Released: 2020-08-10
- Data updated: 2026-08-24
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/raining-bell/id1519965957/reviews.md

## What is Raining Bell?

“Raining Bell” integrated with “Firefly” Smart Weather Service
App

Raining Bell is an industry–academia collaborative project that applies
real-time radar-monitoring technology to meteorological disaster-
prevention services. It integrates nationwide radar observations with
FORMOSAT-7 satellite data and employs data-assimilation and radar-echo
extrapolation techniques to establish an early-warning system capable of
predicting rainfall trends up to three hours in advance. The user interface,
designed by the National Science and Technology Center for Disaster
Reduction (NCDR), combines location-based services and push
notifications to deliver timely, convenient weather information.

The latest version incorporates the Firefly smart voice assistant powered
by the TAIDE large language model (LLM). Users can interact naturally in
Mandarin or Taiwanese to check weather conditions and receive
proactive alerts about rainfall and potential disaster risks. By combining
real-time forecasts from the Central Weather Administration (CWA) with
Raining Bell’s observation data, the system provides intelligent, localized,
and personalized weather services.

This app was developed under the guidance of the National Science and
Technology Council (NSTC) through the joint efforts of NCDR and the
National Center for High-Performance Computing (NCHC). The software
was produced by ThinkYes Technology Co., Ltd. By integrating AI with
disaster-prevention technology, Raining Bell offers a weather service that
is both real-time and human-centered.
This product represents experimental research results; for official weather
forecasts, please refer to announcements from the Central Weather
Administration.

## Key features

- Real-time radar monitoring
- Satellite data integration
- Rainfall prediction up to 3 hours
- Early warning system
- Location-based services
- Push notifications
- Smart voice assistant

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/raining-bell/id1519965957/reviews.md

### 3/5 — 耗電有點兇

*2021-03-15*

也許是在背景更新資料的頻率過高，常常是手機前幾名的app，應該是不需要更新這麼頻繁
App本身挺不錯的，可以看到所在地附近雲層雷達回波跟雨量。幾次降雨警示也滿準的。改進耗電問題應該能有四顆星

## Frequently asked questions about Raining Bell

### What is Raining Bell?

Raining Bell is a weather app that uses real-time radar and satellite data to provide early warnings for rainfall and potential meteorological disasters up to three hours in advance. It also features a smart voice assistant for weather inquiries.

### How accurate is Raining Bell's forecast?

Raining Bell integrates nationwide radar observations with FORMOSAT-7 satellite data and uses data-assimilation and radar-echo extrapolation techniques for its predictions. For official forecasts, users should refer to announcements from the Central Weather Administration.

### Does Raining Bell have ads?

No, Raining Bell does not contain advertisements. It is a free application developed under the guidance of the National Science and Technology Council.

### What devices does Raining Bell support?

Raining Bell is currently supported on iPhone and iPod devices. It was last updated on November 10, 2025, with version 1.18.1.

### Can I get disaster alerts with Raining Bell?

Yes, Raining Bell is designed for meteorological disaster prevention. It provides proactive alerts about rainfall and potential disaster risks based on its advanced forecasting technology.

### What languages does the Raining Bell voice assistant support?

The Firefly smart voice assistant integrated into Raining Bell supports natural language interaction in Mandarin and Taiwanese. This allows users to easily check weather conditions and receive alerts.

### Is Raining Bell suitable for children?

Raining Bell has an age rating of 4+, making it suitable for children. The app focuses on providing important weather information and disaster prevention alerts.

### How often is Raining Bell updated?

The latest version of Raining Bell is 1.18.1, which was last updated on November 10, 2025. This indicates a commitment to regular updates and improvements.

## Version history (last 5 releases)

### 1.18.1 — 2025-11-10

Add the “Firefly” Smart Voice Assistant

### 1.18 — 2025-11-07

The new functionality introduces the "Firefly" intelligent voice assistant.

### 1.17 — 2023-04-24

1. Fixed IOS 16.4 location cannot obtain permission
2. Fixed the issue of crashing when the background is positioned

### 1.16 — 2023-04-06

1. Fix the error that the lock screen widget cannot be located
2. Correct the language system of instant push messages
3. Fixed the problem that the Chinese and English languages of the menu and interface were out of sync

### 1.15 — 2022-10-07

Update App for IOS 16 and lock screen widget.

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## More apps by ThinkYes Technology Co., Ltd.

- [我的心裡MindHeart](https://appshunter.io/ios/app/mindheart/id1558595067)

All apps by ThinkYes Technology Co., Ltd.: https://appshunter.io/developer/1485389027

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*