PREP is currently available in Japanese only. If you have Yurekuru Call and prefer English, we recommend keeping your current version.
Thank you for your patience and we are working hard to support English as soon as possible.

◆ PREPのポイント
 - 現在地と連動してリアルタイムな災害情報を表示します。
 - 災害時の行動方針をあらかじめ決めておくことができます。
 - 災害発生時、安全な行動を取れるようにガイダンスを表示してサポートします。

◆ PREPでできること








◆ PREPがあつかう災害情報
- 地震情報(緊急地震速報)
- 津波情報
- 噴火速報・警報
- 降水情報
- 指定河川洪水予報
- 台風情報
- 大雨危険度(土砂災害、浸水、洪水)
- 竜巻情報
- 雷情報
- 避難情報

◆ 有料プラン
[ 料金形態 ]
- プレミアムプラン:120円/月
- ファミリープラン(6人まで):360円/月

プレミアムプラン、ファミリープランは自動継続課金機能(Auto Renewable Subscription)を利用しています。

◆ 有料プランでできること
1. チーム(ファミリープランのみ)

2. 超高速プッシュ通知

3. 地震一覧を直近50件まで表示

4. 複数地点設定

5. 広告非表示

[ 自動更新の確認・解約方法 ]
自動更新の確認・解約は、設定App > 自分の名前 > サブスクリプションからおこなえます。
設定App > iTunes と App Store > 自分の Apple ID > Apple ID を表示(サインイン) > サブスクリプション

[ 利用規約 ]
[ プライバシーポリシー ]

What’s New

Version 4.1.6



Ratings and Reviews

2.0 out of 5
4 Ratings

4 Ratings

OkiiKuma ,

Was better before "Premium" version

I have used this app for a long time and purchased the no ads and multiple locations options. Now RC Solutions thought it is better to pay a monthly fee for the "premium" version which does the same as my previous paid add-ons. There is even "High Speed Delivery".

The only problem is that now the notification come slow or later than before. If you say it is a "Premium" subscription service then make sure your "Premium" services are working correctly.

Definitely a step backward.

Nekomusume418 ,

Not working quite right

I've had this application for several years and it always gave me a warning for quakes in my area, just as it should. Lately, though, it's been alerting me about every quake of any size from anywhere in Japan. It started maybe a week ago and I'm tired of it lighting up my phone all the time and scaring me for no reason. I don't want to start ignoring it and then miss a warning I need. I even turned off notifications and it still comes. Please fix this so I can get only mine.
There was a quake I felt last week and it didn't even pop up on the list until 10 or 15 minutes later, making me think I was crazy and just feeling things that didn't happen.
Please please fix these issues.

Kagerou313 ,

Yurekuru was so much better.

Let’s start with the first issue. The app states Japanese and English language, but English support was removed when transitioning to the PREP app.

Either this should be changed in the App Store or the developers should notify us as to when an English version should come. Please, don’t leave us hanging either.

Second. I logged in earlier this week and updated the app this morning. After updating, my account logged out. Minor problem? Yes. Completely avoidable? Most likely.

Most concerning are the notifications. You can choose what type of push notifications to get, but they’re not working correctly. I get so many push notifications, it’s hard to tell if they’re important or not. Turning off the type of notification does nothing for heavy rain alerts.

Even then, there’s no threshold for heavy rain alerts. Yurekuru had a great system for allowing us to choose the severity of earthquake alerts. I think this app would be so much better if we could tailor our alerts just like we could on Yurekuru.

So for now, and this gets one star. It’s going to take more than English language support to change my mind.

App Privacy

The developer, RC Solution Co., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Data Linked to You

The following data may be collected and linked to your identity:

  • Purchases
  • Location
  • Contact Info
  • User Content
  • Identifiers
  • Usage Data
  • Diagnostics

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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