NERV Disaster Prevention
NERV Disaster Prevention is made and published by Gehirn Inc. AppBrain is an independent app data site and isn't affiliated with Gehirn Inc. The app name, icon, screenshots and description belong to Gehirn Inc. and are shown as published on the App Store.
AppBrain's verdict
EstablishedTop 10- Rating on App Store
- 4.66
- 47 ratings
- Last updated
- September 17, 2026
- Size
- 75.6 MB
It doesn't have enough ratings yet to judge what users think. Its best ranking is #1 in Top Free, Weather in Japan.
User feedback
Ratings and reviews on the App StoreComments on NERV Disaster Prevention for iOS
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Store listing
By Gehirn Inc., from the App StoreDescription by Gehirn Inc. Written by the developer, not by AppBrain. Click to read.
The app was developed to help people living in or visiting an area where damage is expected to occur, to accurately assess the situation and make quick decisions and actions.
With information received directly through a leased line connected to the Japan Meteorological Agency, our proprietary technology enables the fastest information distribution in Japan.
▼ All the information you need, in one app
Get a wide range of disaster prevention information, including weather and typhoon forecasts, rain radar, earthquake, tsunami and volcanic eruption alerts, emergency weather warnings and landslide information, river information, and heavy rain risk notifications.
By interacting with the map on the screen, you can zoom in on your location or pan across the country and see the cloud cover, typhoon forecast areas, tsunami warning areas, or the scale and intensity of an earthquake.
① Providing users with the most appropriate disaster information
The home screen displays the information you need at the time and place you need it. When there’s an earthquake, the home screen will show you the latest information. If another type of warning or alert is issued while the earthquake is active, the app will sort them depending on the type, elapsed time and urgency, so you’ll always have the most important information at your fingertips.
② Push Notifications for Important Information
We send out different types of notifications depending on the device’s location, the type of information and level of urgency. If the information is not urgent, we send a silent notification as not to disturb the user. For more urgent situations where a disaster is time-sensitive, a ‘Critical Alert’ alerts the user to an imminent danger. Notifications like Earthquake Early Warnings (Alert level) and Tsunami Warnings will be forced to sound, even if the device is in Silent or Do Not Disturb modes.
Note: Critical Alerts will only be sent to users in the target area of the most urgent types of disasters. Users who have registered their location but are not in the target area will instead receive a normal notification.
※ In order to receive Critical Alerts, you need to set your location permissions to “Always Allow” and have Background App Refresh turned on. If you don’t want Critical Alerts, you can disable them from Settings.
③ Barrier-Free Design
We paid close attention when designing the app to ensure our information is accessible to everyone. We put a focus on accessibility, with colour schemes that are easy to distinguish for people with colour blindness, and use a font with large, clear letters so long bodies of text are easy to read.
▼ Supporters’ Club (In-App Purchase)
In order to keep doing what we do, we’re looking for supporters to help us cover the development and operational costs of the app. The Supporters’ Club is a voluntary membership scheme for those who want to give back to the NERV Disaster Prevention app, by contributing to its development with a monthly fee.
You can find out more information about the Supporters’ Club on our website.
https://nerv.app/en/supporters.html
[Privacy]
Gehirn Inc. is an information security company. The security and privacy of our users is our highest priority. We take great care not to collect excessive amounts of information about our users through this application.
Your exact location is never known to us; all location information is first converted to an area code used by everyone in that area (like a zip code). The server also doesn’t store past area codes, so your movements cannot be tracked.
Learn more about your privacy on our website.
https://nerv.app/en/support.html#privacy
Safety and technology
Found in the app by AppBrain- Price
- Free
- App size
- 75.6 MB
- Content rating
- Everyone
Technologies used by NERV Disaster Prevention
Releases
Updates seen on the App Store- Version
- 7.1.0
- Launched
- August 2021
No changelog data
Alternatives
Similar apps and more from Gehirn Inc.Alternatives to NERV Disaster Prevention
Also available on Google Play
Rankings
App Store top charts- Highest rank
- #1
- Chart
- Top Free
- Weather
- Country
- Japan
App Store Rankings for NERV Disaster Prevention
Top rankings
| Rank | Country | Category | List |
|---|---|---|---|
| 1 | Japan | Weather | Top Free |
| 7 | Japan | Weather | Top Grossing |
| 13 | Canada | Weather | Top Free |
| 13 | Germany | Weather | Top Free |
| 7 | South Korea | Weather | Top Free |
| 10 | Australia | Weather | Top Free |
| 30 | United States | Weather | Top Free |
| 12 | Belgium | Weather | Top Free |
| 13 | United Kingdom | Weather | Top Free |
| 13 | Netherlands | Weather | Top Free |
Ranking history in Japan
About the app and developer
About NERV Disaster Prevention
NERV Disaster Prevention is a weather app developed by Gehirn Inc.
User Ratings
NERV Disaster Prevention is rated 4.66 out of 5 stars. The rating is based on 47 ratings.
App Information
NERV Disaster Prevention is freely available from the App Store. The app size is 75.61 MB. The latest version available is 7.1.0. The last update was on September 17, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since August 2021.
Developer information for Gehirn Inc.
Address:
Frequently asked questions about NERV Disaster Prevention
Is NERV Disaster Prevention free?
Yes. NERV Disaster Prevention is free on the App Store.
Is NERV Disaster Prevention still available?
Yes. NERV Disaster Prevention is on the App Store, and the last update we saw was on September 17, 2026.
How large is NERV Disaster Prevention?
NERV Disaster Prevention is 75.61 MB.
Is NERV Disaster Prevention suitable for children?
App Store rates the content of NERV Disaster Prevention as suitable for everyone.
How do people rate NERV Disaster Prevention?
NERV Disaster Prevention scores 4.66 out of 5 stars, from 47 ratings on the App Store.
Who made NERV Disaster Prevention?
NERV Disaster Prevention was developed by Gehirn Inc. It is listed in the weather category on the App Store.
What are the best alternatives to NERV Disaster Prevention?
People looking at NERV Disaster Prevention also look at these weather apps: ゆれくるコール, Safety tips, 全国避難所ガイド, PREP(プレップ) - 総合防災アプリ, tenki.jp 天気予報・雨雲レーダー/地震速報・台風情報.
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