Comparison

Disaster Preparedness TokyoApp vs BDC

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Disaster Preparedness TokyoApp

This app provides essential disaster preparedness knowledge through interactive learning and practical tools. It offers multilingual support, specialized modes for children and seniors, and offline access to vital information like maps and guides.

Highlights
  • Disaster Readiness Guide booklets
  • Disaster prevention quizzes with points
  • Disaster preparedness checklist with alerts
  • Interactive disaster prevention maps
  • Evacuation route planning
  • Latest disaster and weather information
  • Multilingual support
Features
Read full description

With the concept of “play,” “learn,” and “use,” this app provides basic knowledge on disaster preparedness which can be taken in while playing on the app, as well as disaster preparedness booklets, disaster prevention maps, and other content useful during a disaster. The app now also offers “Kids Mode” and “Senior Mode”, and it can even be used in English, Chinese, Korean, and Simple Japanese, making it an app that is easy to understand and use, and can be tailored to suit users’ individual needs. 【Major Features】 ●View the “Disaster Readiness Guide” and “Disaster Preparedness Tokyo” disaster preparedness booklets You can view “Disaster Readiness Guide” and “Disaster Preparedness Tokyo” and set bookmarks in them on pages that you will want to see again. Also, once you download them, you are able to access them even when not connected to the internet. ●Disaster prevention quiz Quizzes cover a wide range of topics related to disaster preparedness. Quizzes are displayed for each topic, and depending on your percentage of correct answers, you can earn points that can be used at your Bosai City and other places. ●Disaster prevention City This play-based content in which users earn points by using the app and correctly answering disaster preparedness quiz questions is designed to make your Bosai City a place with a high degree of disaster preparedness. ●Checklist Through different scenarios, it introduces food to stockpile, indoor preparations, items to prepare, and other actions to take in advance of an emergency occurring. Items can be recorded and managed by checking them off, and memos and expiry dates can be entered so that you can receive alerts when items that are about to expire. ●Disaster Preparedness map Search for and confirm the locations of various disaster preparedness facilities and other facilities on a map. You can also create your own evacuation route as a “My Route”, which is useful for evacuation in the event of a disaster, and registering it in advance allows you to check it even when you are not connected to the internet. Additionally, app includes area danger level maps that provide danger levels for selected locations, as well as flood damage risk maps that visually depict the estimated inundation areas for selected locations. The offline map function lets you check maps even when not connected to the internet if you download the necessary municipality maps. ●Evacuation Simulation It allows you to check the route to a destination from a specified location such as home or school via Street View or by actually walking. ●Latest disaster information You can check for Evacuation, Weather, Earthquake, Tsunami, and Volcano information in the Tokyo Metropolitan area, as well as, the area registered by yourself. ●Tokyo My Timeline My Timeline is a sheet that people can use to prepare for storm and flood damage and organize appropriate disaster preparedness actions in advance to prevent panicking in the event of an emergency. The required information and evacuation methods differ for the three weather situations, so create separate sheets for all three. ●Raincloud radar Check the movement of rainclouds and typhoon information. ●Safety confirmation You can check the safety confirmation of family and friends through safety confirmation search across various services. ●Group contact Create and register a group with family and friends within the app to send and receive messages among each other, including location information, in the event of a disaster. ●Emergency alarm A buzzer will sound when the screen is tapped, and a push notification will be sent out to members of the family and friends who are registered on the app in advance. ●Help Card in three languages A collection of phrases used when requesting for help during an emergency are posted in multiple languages . ●Disaster preparedness links Includes links useful in the event of storm and flood damage.

About

BDC

Features
Read full description

BDC is an application based smart hardware management.Through BDC you can remotely manage any of our brands'smart devices and mainstream third-party devices, and you can also connect your favorite smar devices through BDC to customize your personalized life scenarios In addition, BDC enables you to: - Communicate with home contacts in high-definition and convenient audio and video anytime, anywhere. - Control devices remotely wherever you are. BDC can do these for you: - Record abnormal domestic information and push alerts remotely. - Set security mode to secure your home around the clock. - Support energy management, and save your power through automation. - BDC is designed as user-centered, bringing you a smart, convenient and safe home life.

Screenshots

Disaster Preparedness TokyoApp4 screens
BDC4 screens

Verdict

The call

The clearest difference is update cadence: Disaster Preparedness TokyoApp at every 3 weeks against BDC's every 4 months. BDC's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Disaster Preparedness TokyoApp ships an update every 3 weeks, BDC every 4 months. The most recent releases landed on November 12, 2026 and November 8, 2026 respectively.

Scorecard2 real differences · 8 level
Disaster Preparedness TokyoApp versus BDC: the parameters behind the verdict, then further details
ParameterDisaster Preparedness TokyoAppBDC
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews30.4% of reviews—
Number of ratings3 — better—
Update frequencyEvery 3 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size293 MB185 MB
Age rating4+4+
DeveloperTokyo Metropolitan GovernmentMILESEUM INC.

In-app purchases

None

Disaster Preparedness TokyoApp

No in-app purchases

None

BDC

No in-app purchases

Questions

Is Disaster Preparedness TokyoApp free?
Disaster Preparedness TokyoApp is free to download, with no in-app purchases.
Is BDC free?
BDC is free to download, with no in-app purchases.
Do Disaster Preparedness TokyoApp or BDC have ads?
Neither Disaster Preparedness TokyoApp nor BDC shows ads.
Which is updated more often, Disaster Preparedness TokyoApp or BDC?
Disaster Preparedness TokyoApp ships an update every 3 weeks, and BDC every 4 months. Most recently, Disaster Preparedness TokyoApp was updated on November 12, 2026 and BDC on November 8, 2026.

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