NERV Disaster Prevention

In-app purchases
4.5
4.71K reviews
1M+
Downloads
Content rating
Everyone
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About this app

The NERV Disaster Prevention App is a smartphone service that delivers earthquake, tsunami, volcanic eruption and emergency warnings, as well as provides weather-related disaster prevention information for flooding and landslides, optimised based on the user's current and registered locations.

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
Updated on
Sep 25, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location, App info and performance, and Device or other IDs
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.5
4.55K reviews
Kajetan Wierszelis
September 14, 2024
Super cool app, and works on a 2015 LG G4 no problem. I amusingly still get earthquake warnings after returning to Poland from Japan, so I at least have a reason to text my Japanese friends (It usually goes "ね、さっきの実施がどう?" "えええ?").
1 person found this review helpful
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Ka Rin
January 3, 2024
Could you please enable to change notifications based on earthquake strength? It's frightening to have a sound notice for an unimportant event such as strength 3. I'd prefer to set to lower 5 (like yahoo allows), so I know it's potentially serious without checking my phone first. Will have to disable sounds on this until the feature comes or otherwise I'd be constantly scared
26 people found this review helpful
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Alex Orsholits
March 15, 2023
Thank you for making such an excellent app. It exceeds all expectations. One feature that would be nice to see updated would be the home screen widgets. They currently cannot be resized in any way.
10 people found this review helpful
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What's new

- Attach images to Crisis Mapping reports
- Moderators will review submitted images before they are made public
- Improved Crisis Mapping layer filters
- Filter reports by category or features (such as ostomate-friendly toilets) and by distance or latest posts
- Fixed a bug where the Synoptic Chart layer would not display correctly

We would like to express our condolences to those affected by the recent heavy rains in Noto, as well as our heartfelt sympathy to those who lost their lives.

App support

About the developer
GEHIRN INC.
support@gehirn.co.jp
1-3-6, KUDANKITA SEKI BLDG. 7F. CHIYODA-KU, 東京都 102-0073 Japan
+81 3-3263-2203