Safety tips vs NERV Disaster Prevention
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Safety tips
This app provides real-time alerts for various natural disasters and civil protection information in Japan. It supports multiple languages and offers useful resources for foreign tourists, including medical facility listings and emergency contact numbers.
- Real-time disaster alerts (EEW, Tsunami, Volcanic, Weather, Heat illness)
- Civil Protection Information notifications
- Multi-language support (5 languages)
- Medical institution finder for foreigners
- Evacuation advice and shelter information
- Emergency contact numbers
- Disaster preparedness learning materials
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Note: Weather warnings and advisories area in Nara City, Nara Prefecture has changed. Please update to the latest version of Safety tips. Also, if you have set up Nara City, Nara Prefecture, please reset the location. This Application notifies a user with EEW, Tsunami Warnings, Volcanic Warnings, Weather Warnings, Heat illness Warnings and Civil Protection Information issued in Japan. It is a free application developed under the supervision of Japan Tourism Agency. The Application provides various functions useful for foreign tourists in Japan. The application is available in five languages: English, simplified and traditional Chinese, Korean, and Japanese. <Main functions and its utilization> -Receiving Earthquake Early Warnings, Tsunami Warnings, Volcanic Warnings, Weather Warnings, Heat illness Warnings and Civil Protection Information. Before using the Application for the first time, select locations for which you wish to receive warnings from the Settings Menu (you may select a maximum of five locations (in Japan only))(*). Users will receive notifications when Earthquake Early Warning for local earthquakes of seismic intensity level 4 or greater, Tsunami Warning, Volcanic Warnings, Emergency Warnings , Heat illness Warnings, or Civil Protection Information are issued for the selected locations. Also, please make sure that the device which has not been changed a prediction point for more than 1 month from final change date of setting will not be able to receive notifications. If you turn automatic setting of a point on, you can receive notifications even in the case that it has been more than 1 month since you set a prediction point. (*) It is necessary to activate the Location Information Service (GPS), if you wish to set locations by using GPS. GPS is also used to display your current location on the map. -Earthquakes Information on past earthquakes. A maximum of ten records (seismic intensity level of 3 or higher.) -Weather Warnings Weather Warnings (heavy rain, flood, violent wind, severe snowstorm, heavy snow, high seas, storm surge) and Emergency Warnings (heavy rain, violent wind, severe snowstorm, heavy snow, high seas, storm surge) issued for the selected locations. -Volcanic Warnings Currently issued Volcanic Warnings. -Heat illness Warnings Currently issued Heat illness Warnings. -Medical Institutions List of medical facilities accepting foreigners (Provided by the Japan Tourism Agency.) -Evacuation advice / instruction etc. Provides Evacuation advice / instruction information. Also provides Shelter Information. (Link to external application.) ※Please note that information of municipalities using "L alert" will be displayed. -Learning Materials Knowledge you want to know before a disaster occurs. -Communication cards A set of question sentences that can be used when asking questions to people around you during a disaster. -Emergency Contacts Numbers to call in case of emergency. -Links Links to other sources of information that may be necessary during disaster situations (contact information of embassy, nearest tourist information centers, etc.), and other information concerning disasters and tourism. - Civil Protection Information Safety tips delivers information regarding ballistic missile attacks among civil protection information from Fire and Disaster Management Agency. While the application and various types of information are free, communication charges related to download and use of Application shall be borne by the user. We will not be liable for any losses and/or damages resulting from the use of the Application. For support site of Safety tips, see here -> http://www.rcsc.co.jp/safetytips-sp
NERV Disaster Prevention
This app provides critical disaster warnings for earthquakes, tsunamis, volcanic eruptions, and weather-related events like floods and landslides. It offers real-time information optimized for your current and registered locations, helping you make informed decisions during emergencies.
- Earthquake, tsunami, volcanic eruption warnings
- Weather-related disaster prevention info
- Location-optimized alerts
- Real-time map interaction
- Urgency-based notification sorting
- Critical Alerts for imminent danger
- Barrier-free design
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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
Screenshots
Verdict
The clearest difference is review sentiment: NERV Disaster Prevention at 80% against Safety tips's 17%. NERV Disaster Prevention also leads on rating (4.7 vs 2.2). Safety tips's advantage is in-app purchases (none vs 2) and update cadence (fortnightly vs every 6 weeks). On price, ratings volume, ads and chart position 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. NERV Disaster Prevention sells 2 in-app purchases, starting at $2.49 per month. Safety tips asks for nothing beyond the download.
NERV Disaster Prevention holds the better App Store score, 4.7 against 2.2. Both are backed by a comparable volume of ratings — 19 and 47 respectively. Written reviews point the same way: 17% of Safety tips's written reviews are positive against 80% of NERV Disaster Prevention's.
Safety tips ships an update fortnightly, NERV Disaster Prevention every 6 weeks. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.
| Parameter | Safety tips | NERV Disaster Prevention |
|---|---|---|
| Price | Free | Free |
| Rating | 2.2 (19 ratings) | 4.7 (47 ratings) — better |
| Positive reviews | 16.7% of reviews | 80.5% of reviews — better |
| Number of ratings | 19 | 47 — better |
| Update frequency | Fortnightly — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Best chart rank | #70 | #44 — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 97 MB | 76 MB |
| Age rating | 4+ | 4+ |
| Developer | RC Solution Co. | Gehirn Inc. |
Customer experience
Safety tips
NERV Disaster Prevention
In-app purchases
Safety tips
No in-app purchases
NERV Disaster Prevention
- E Plan$2.491 Month
- EE Plan$4.491 Month
Questions
Is Safety tips free?
Is NERV Disaster Prevention free?
Which has better reviews, Safety tips or NERV Disaster Prevention?
Do Safety tips or NERV Disaster Prevention have ads?
Which is updated more often, Safety tips or NERV Disaster Prevention?
Which is more popular, Safety tips or NERV Disaster Prevention?
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