NERV Disaster Prevention: iPhone vs Android
NERV Disaster Prevention gets 1k+ downloads a day worldwide (AppInsider estimate, October 2026, rounded down to a band).
NERV Disaster Prevention by Gehirn Inc. is on both the App Store and Google Play. Here are both versions together: downloads, users, revenue, ratings and chart positions, store by store with totals.
Weather FreeNERV Disaster Prevention at a glance
AI summary written from our chart and store data, 2026-10-19. It can be wrong: check the numbers above.
A disaster prevention app for residents and visitors in Japan that provides real-time earthquake, tsunami, and weather alerts using direct data from the Japan Meteorological Agency. The app holds the #1 position in the Japanese Weather Free category and ranks within the top 40 in major global markets including the US, UK, and Germany, indicating strong international adoption of its localized alert system.
Similar apps: Yahoo! Weather, AccuWeather, MyRadar
App Store
App details
App privacy Measured
NERV Disaster Prevention’s App Store privacy label declares 0 data categories used to track you across other companies’ apps and websites, 0 linked to your identity and 2 collected anonymously.
As declared by the developer on the App Store — Apple requires every app to publish this label. We track changes over time.
Google Play
App details
Tech stack
Trackers and permissions of build v7.0.0, from the εxodus privacy report (CC BY-SA).
NERV Disaster Prevention downloads & installs
Both stores, worldwide. Bands are open; exact numbers are free with an account.
| Store | Downloads / day | Lifetime installs |
|---|---|---|
| iPhone | 1k+ | 1M+ |
| Google Play | 1k+ | 1M+ Measured |
| Total | 1k+ Confidence | 1M+ Confidence |
How this is calculated
Where NERV Disaster Prevention's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Retention · share of new users still active
Time spent · per daily user
How this is calculated
In-app revenue
Worldwide, what users spend before Apple and Google take their fee.
| Store | Per day | Per month | Share |
|---|---|---|---|
| App Store | |||
| Google Play | |||
| Total | Confidence | 100% |
Business model: In-app purchase-led
How NERV Disaster Prevention makes money: subscriptions, one-off purchases and ads.
Top in-app purchases · App Store US, most popular first
| 1 | E Plan | |
| 2 | EE Plan |
Where it ranks now
Both stores, across every country we track.
Ratings
Both stores. Store data, measured.
| Store | Rating | Ratings |
|---|---|---|
| App Store | 4.7 ★ | 47 |
| Google Play | 4.5 ★ | 5.8k 23 written reviews |
| Both stores | 4.5 ★ weighted by ratings | 5.8k |
What users say about NERV Disaster Prevention
From the 19 most recent App Store reviews in the US.
Users highly praise the app's reliability for earthquake and disaster alerts in Japan, noting it often outperforms official government notifications. While most reviews are positive regarding design and functionality, some users report notification failures or express frustration that the service is geographically restricted to Japan.
Mostly positive (84% of recent reviews give 4–5 stars). People like it for being useful, and its design.
What people like
- Useful: “Of that, I do recommend it”
- Design: “Fast, helpful, tasteful, good UI”
- Speed & performance: “Fast, helpful, tasteful, good UI”
- Ease of use: “It has a simple design and easy to understand”
About NERV Disaster Prevention
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
NERV Disaster Prevention iPhone
NERV Disaster Prevention gets 1k+ downloads a day worldwide (AppInsider estimate, October 2026, rounded down to a band).
NERV Disaster Prevention is #5 in Weather Free in Japan and charting in 13 of 30 countries we track.
Updated 25 Oct 2026 · rankings refresh through the day
24 Sep 2026 Weather FreeNERV Disaster Prevention at a glance
AI summary written from our chart and store data, 2026-10-19. It can be wrong: check the numbers above.
A disaster prevention app for residents and visitors in Japan that provides real-time earthquake, tsunami, and weather alerts using direct data from the Japan Meteorological Agency. The app holds the #1 position in the Japanese Weather Free category and ranks within the top 40 in major global markets including the US, UK, and Germany, indicating strong international adoption of its localized alert system.
Similar apps: Yahoo! Weather, AccuWeather, MyRadar
NERV Disaster Prevention on the App Store
App details
App privacy Measured
NERV Disaster Prevention’s App Store privacy label declares 0 data categories used to track you across other companies’ apps and websites, 0 linked to your identity and 2 collected anonymously.
As declared by the developer on the App Store — Apple requires every app to publish this label. We track changes over time.
NERV Disaster Prevention downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Where NERV Disaster Prevention's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Retention · share of new users still active
Time spent · per daily user
How this is calculated
In-app revenue
Worldwide, what users spend in NERV Disaster Prevention before Apple and Google take their fee.
How this is calculated
Business model: In-app purchase-led
How NERV Disaster Prevention makes money: subscriptions, one-off purchases and ads.
Top in-app purchases · App Store US, most popular first
| 1 | E Plan | |
| 2 | EE Plan |
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | WeatherFree | #5 |
| Japan | WeatherGrossing | #9 |
 United States | WeatherFree | #67 |
 Germany | WeatherFree | #43 |
 Canada | WeatherFree | #26 |
 South Korea | WeatherGrossing | #47 |
 Australia | WeatherFree | #40 |
 United Kingdom | WeatherFree | #85 |
 Indonesia | WeatherFree | #31 |
| South Korea | WeatherFree | #87 |
 India | WeatherFree | #66 |
 France | WeatherFree | #88 |
| Russia | WeatherFree | #60 |
 Italy | WeatherFree | #99 |
 United Arab Emirates | WeatherFree | #76 |
Apps near NERV Disaster Prevention on the chart
Weather Free, around #5.
Ratings
App Store, worldwide.
What users say about NERV Disaster Prevention
From the 19 most recent App Store reviews in the US.
Users highly praise the app's reliability for earthquake and disaster alerts in Japan, noting it often outperforms official government notifications. While most reviews are positive regarding design and functionality, some users report notification failures or express frustration that the service is geographically restricted to Japan.
Mostly positive (84% of recent reviews give 4–5 stars). People like it for being useful, and its design.
What people like
- Useful: “Of that, I do recommend it”
- Design: “Fast, helpful, tasteful, good UI”
- Speed & performance: “Fast, helpful, tasteful, good UI”
- Ease of use: “It has a simple design and easy to understand”
About NERV Disaster Prevention
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
Latest updates
NERV Disaster Prevention Android
NERV Disaster Prevention gets 1k+ downloads a day worldwide (AppInsider estimate, October 2026, rounded down to a band).
NERV Disaster Prevention is #7 in Weather Grossing on Google Play in Japan and charting in 16 of 23 countries we track.
Updated 25 Oct 2026 · rankings refresh through the day
Weather GrossingNERV Disaster Prevention at a glance
AI summary written from our chart and store data, 2026-10-18. It can be wrong: check the numbers above.
A free disaster prevention app for residents and visitors in Japan that delivers real-time earthquake, tsunami, and weather alerts via a direct link to the Japan Meteorological Agency. The app dominates the Japanese market as the #1 free weather application while maintaining strong grossing positions across diverse international markets including Australia, Indonesia, and Vietnam.
Similar apps: Yahoo! Weather, AccuWeather, MyRadar
NERV Disaster Prevention on Google Play
App details
Tech stack
Trackers and permissions of build v7.0.0, from the εxodus privacy report (CC BY-SA).
NERV Disaster Prevention downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Where NERV Disaster Prevention's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Retention · share of new users still active
Time spent · per daily user
How this is calculated
In-app revenue
Worldwide, what users spend in NERV Disaster Prevention before Apple and Google take their fee.
How this is calculated
Business model: In-app purchase-led
How NERV Disaster Prevention makes money: subscriptions, one-off purchases and ads.
Top in-app purchases · App Store US, most popular first
| 1 | E Plan | |
| 2 | EE Plan |
Where it ranks on Google Play
Every top 200 chart it appears in across 23 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | WeatherGrossing | #7 |
| Japan | WeatherFree | #13 |
| United States | WeatherFree | #164 |
| India | WeatherGrossing | #35 |
| United Kingdom | WeatherFree | #78 |
| Germany | WeatherFree | #69 |
| Australia | WeatherFree | #48 |
 Mexico | WeatherGrossing | #37 |
| Indonesia | WeatherGrossing | #35 |
 Saudi Arabia | WeatherGrossing | #35 |
| Canada | WeatherFree | #58 |
 Turkey | WeatherGrossing | #35 |
| United Arab Emirates | WeatherGrossing | #36 |
 Netherlands | WeatherGrossing | #38 |
| France | WeatherFree | #122 |
 Thailand | WeatherGrossing | #37 |
 Vietnam | WeatherGrossing | #32 |
| Netherlands | WeatherFree | #60 |
| United Arab Emirates | WeatherFree | #137 |
Apps near NERV Disaster Prevention on the chart
Weather Grossing, around #7.
Ratings
Google Play, worldwide.
What users say about NERV Disaster Prevention
From the 62 most recent Google Play reviews in the US.
Users highly value the app's accurate real-time disaster alerts and unique Evangelion-themed interface for residents in Japan. However, significant frustration exists regarding the strict geographic limitation to Japan, rendering it useless for international users.
Mixed but leaning positive (71% of recent reviews give 4–5 stars). People like it for being useful, and regular updates. The main complaints are about missing features or content. Recent reviews are more negative than earlier ones.
What people like
- Useful: “So useful for earthquake information in Japan”
- Updates: “:) <3 Only occasional update missteps ever cause a problem”
- Features & content: “The best feature on the earthquake alerts is the predicted countdown before you will feel the effects”
Common complaints
- Features & content: “It says there's eartquake feature but there is none”
About NERV Disaster Prevention
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
What's new in 7.1.0
- Weather Flash Reports and Weather Information can now be delivered as push notifications
- The “Synoptic Chart” layer that was previously offered through Early Access is now available to everyone
Our thoughts are with everyone affected by the heavy rain disasters occurring across Japan. We hope you’ll be able to get back on your feet, in both body and mind, as soon as possible.
Similar apps
Apps people compare with NERV Disaster Prevention: the same core purpose or gameplay, checked one by one.
Japan AlertsItchigoo · ★ 4.4
Safety tipsRC Solution Co. · ★ 2.1
Jolt: Japan Earthquakes21 Media
Yahoo!防災速報Yahoo Japan Corporation · ★ 4.1
ココダヨ - 地震などの災害時に役立つ位置情報共有防災アプリGENETEC CORPORATION · ★ 4.0
ゆれくるコールRC Solution Co. · ★ 5.0
tenki.jp 天気予報・雨雲レーダー/地震速報・台風情報一般財団法人 日本気象協会 · ★ 4.5
Yahoo!天気Yahoo Japan Corporation · ★ 4.4