蔵太郎 防災備蓄の管理・積立アプリ

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About this app

"How many days' worth do we have left?"

Kurataro is a disaster preparedness management app that visualizes your stockpiles in terms of "days." Simply enter your family size, and it automatically calculates the amount of supplies your household needs. It manages the stock and expiration dates of emergency food and water all in one place, allowing you to gradually increase your supplies like a savings plan.

■ Diagnosis takes 1 minute. Find out the necessary amount instantly.
By simply selecting the number of adults, children, and elderly people, and your type of residence, it automatically calculates the necessary quantities of 65 items, including water, food, portable toilets, and hygiene products. The calculation is based on open data from the Tokyo Metropolitan Government's "Tokyo Stockpiling Navi." For households with dogs or cats, pet supplies can also be calculated.

■ Visualize your supplies in terms of "how many days' worth."
Instead of a percentage of sufficiency, it displays the amount in days, such as "currently 4.2 days' worth." You can freely set your goal from 3 days to 30 days, and it supports goals such as "1 week's worth in preparation for the Nankai Trough earthquake." For those who want to know what and how much to stock up on, you can first understand your current situation.

■ Continue Rolling Stock Management with Expiry Date Management
By registering the expiration dates of emergency food, preserved food, and water, you will receive notifications when the expiration date approaches (default 30 days/14 days, the number of days can be changed in the settings). Eat, replenish, and always maintain a fresh stockpile. It will become a daily tool for those who want to continue rolling stock.

■ Identify "Weaknesses" by Category
Displays the number of days needed for each category: water, food, toilet, hygiene, heat source, lighting, and medicine. You can see at a glance imbalances in disaster preparedness goods, such as portable toilets and preparations for power outages and water shortages, which are often put off.

■ Share with Family (Free for up to 2 people)
Simply send an invitation code, and you and your spouse can view the same stockpile. If one person buys something, it will be immediately reflected on the other person's screen. Eliminate the "I thought I bought it, but I didn't" problem. Families of 3 or more can continue to share with Kurataro Plus.

■ Our Family Disaster Preparedness Card (Free)
This card allows you to decide in advance where to meet, how to contact others, and who will pick you up—things that can't be decided on the day of the disaster. It also includes instructions on how to use the disaster message dial (171) and the location of nearby public telephones. You can open and print it even without a signal and give it to your family (no limit on the number of people).

■ Don't Aim for Perfection
Have you ever given up on stockpiling because you were overwhelmed by the sheer volume of recommended items? You don't need to get everything at once. Kurataro supports "a little bit each month" of disaster preparedness. Why not start with just three days' worth?

■ Easy to Use
- No registration required; use immediately (no email address needed)
- Works offline. You can check your inventory even during a disaster.
- Supports account linking (email/Google) for device changes

You can't choose which disaster it will be, but you can start preparing today. Let's build up our family's disaster preparedness stockpile together with Kurataro, the mascot of the earthen storehouse.
This emergency preparedness management app automatically calculates the necessary supplies based on your family's composition. It manages the expiration dates and inventory of emergency food supplies and visualizes your stockpiles in terms of "how many days' worth" you have left, making it compat...
Updated on
Sep 3, 2026

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, Personal info and 3 others
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

・9月1日と4月1日に、年に2回だけお知らせが届くようになりました
・9月1日は「今年の点検」。期限が近いもの、乾電池や懐中電灯のように期限の書かれていないものの状態、防災カードの空欄をまとめて見直せます
・終わったら「今年の点検、おわりました」の1枚を、ご家族にシェアできます
・4月1日は「1年の見直し」。進級・同居・引っ越し・ペットで必要な備蓄は変わります。変わっていなければ1タップ、変わっていれば日数をその場で計算し直します
・お知らせは設定>通知から、それぞれオフにできます
Content rating
Everyone
Users Interact, In-App Purchases
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App support

About the developer
TOWNTECH
info@tw-tech.jp
2-10-48, KITASAIWAI, NISHI-KU MUTSUMI BLDG. 3F. YOKOHAMA, 神奈川県 220-0004 Japan
+81 90-4405-4442