SEER

TRY IT

First, try it in airplane mode.

SEER is a disaster-preparedness app for iPhone and iPad, released on the App Store on Sep 2, 2026 by Libra, a development studio in Ikebukuro, Tokyo (¥2,980, one-time purchase). SEER never talks to a server. The AI, the 190,000-character survival handbook and the evacuation-site data for all of Japan live entirely on your phone. So it keeps working with no signal — even when a disaster knocks out the cell towers.

Switch your phone to airplane mode

Open SEER and ask, “How do I disinfect water?”

The AI answers with sources — and you can open the original text with one tap

Alert apps tell you it’s coming. SEER helps you survive what comes after. With no signal.

FEATURES

What it does

Everything works with no signal.

Ask the AI

Ask your disaster and survival questions in Japanese. SEER answers with sources from its 190,000-character survival handbook, and one tap takes you to the original passage.

Nearby evacuation sites

Includes 115,000 designated emergency evacuation sites across Japan, listed by distance from your GPS location (GPS works even without a signal). Filter by disaster type, such as tsunami or flood.

First aid

Eight scenarios — including CPR, bleeding, choking and burns — as step-by-step guides you move through with “yes” or “no.” No second-guessing, even in a panic.

Emergency mode

One tap shows what to do right now in an earthquake, tsunami, power outage and more.

Supply days left

Enter what you have left — water, food, batteries — and SEER calculates how many days it will last for your household.

Family evacuation plan

Your family’s meeting points, contact rules and how to use Japan’s 171 Disaster Emergency Message Dial, all on a single page.

SEER evacuation-site search: a list of the nearest designated emergency evacuation sites based on GPS

SEER first aid: a step-by-step guide answered with yes or no

SEER supply calculator: days remaining for water and food based on household size

WHY OFFLINE

Why offline matters

In a major disaster, networks can be down for days. Apps that assume a connection fail exactly when you need them most. SEER was designed from day one for the day the internet dies.

Typical disaster apps

Built around alerts, maps and news. They tell you a disaster is coming — but once the network goes down, most of their features stop working.

The AI, the knowledge and the evacuation-site data are all on your device. With zero connectivity, it talks you through what to do after the disaster hits. And it never stops because a subscription ran out.

PRICE

The emergency kit that doesn’t fit in a backpack.

¥2,980(one-time purchase)

A case of bottled water, an emergency go-bag, a portable power station — every kind of preparedness has a price. SEER is preparedness in the form of knowledge, and someone to ask. Buy it once, and you’ll never see “Your subscription has expired” in the middle of a disaster.

Buy on the App Store Buy on Google Play

No subscription Buy once, use it for as long as you like
No ads No ads, ever — not even in an emergency
No data collection Never sends personal information, usage data or location data
Devices iPhone / iPad (iOS 18.0 or later) / Android
First launch only Downloads the AI model (about 0.9 GB). Wi-Fi recommended. After that, it runs fully offline
Android Available on Google Play (since Sep 5, 2026)
Availability & language Japan only (Japanese App Store / Google Play in Japan). The app and its built-in book are in Japanese
Built-in book The survival handbook The Day the Internet Died (『ネットが死んだ日』; Kindle, ¥980, published under the pen name Reiwa Survival Lab). The app carries the full book itself

FAQ

Frequently asked questions

Does it really work with no signal?

Yes. The AI model, the survival handbook and the evacuation-site data are all stored on your device, and answers are generated on the device too. You only need a connection once, to download the AI model (about 0.9 GB) on first launch. After that, every feature works even in airplane mode.

Can I trust the AI’s answers?

SEER’s AI searches the relevant passages of the 190,000-character survival handbook and always shows its sources. You can open the original text with one tap, so you can check the facts yourself instead of taking the AI’s word for it. However, AI answers may contain errors. For life-or-death decisions, always put professionals and public authorities first.

Why is it a paid app?

Because it is designed with no ads, no data collection and no dependence on servers. An app that tells you “Your payment has lapsed” in the middle of a disaster is pointless, so SEER is a one-time purchase instead of a subscription.

Answers take a while to appear.

Because the AI runs on your device, it can take anywhere from a few seconds to a few minutes before an answer starts, depending on your device’s performance. Progress is shown on screen.

Can I use it for medical advice?

No. This app is not a medical device, and first-aid and similar information is general reference only. In an emergency, call 119 (Japan’s emergency number) and always prioritize the judgment of doctors and other professionals.

Can I use SEER outside Japan, or in English?

SEER is currently available only on the Japanese App Store / Google Play in Japan, and the app and its built-in book are in Japanese. The evacuation-site data covers Japan.

Answers,
even with no signal.