Privacy Policy
Last updated: October 14, 2026
This policy explains what personal information Japow collects, why, and what you can do about it. Japow is operated by カケラ ("we", "us").
Summary
- Japow works without an account. If you make one, we keep your email address and what you save in it.
- Your location never leaves your device.
- There are no ads and no analytics trackers.
- Payments are handled by a payment processor. We never see your card number.
- To have your account removed, email support@kakera.app.
1. What we collect
If you only browse: nothing is tied to you. Favorites you save without an account stay on your device. Our server keeps ordinary technical logs, such as the time, the page requested and the IP address, to run and secure the service.
If you make an account:
- Your email address, and the language you use for notifications.
- Sign-in sessions: the time, IP address and browser or device type of each session.
- Your favorite resorts.
- Your alerts, and a record of each alert we sent you and whether it was delivered.
- The date you turned on email alerts, which we keep as a record of your consent.
- If you turn on push alerts, a push subscription for each device: the address your browser gives us to reach it, and the browser type.
If you buy Japow+: we keep a record of the purchase, such as what you bought, when, and whether it is active. Our payment processor collects and holds your payment details.
If you email us: your message and your address.
2. How we use it
- To sign you in and sync your favorites across your devices.
- To send the alerts you set up, by email and push.
- To process purchases and give you the access you paid for.
- To answer your emails, fix problems, and keep the service secure.
- To send you sign-in codes. We don't send marketing email.
3. Location
If you use "Near", your device works out the distance to each resort itself. Your location is not sent to us or to anyone else.
4. Cookies and local storage
Japow sets a session cookie to keep you signed in and a small cookie that tells the page whether you are signed in. It also stores your guest favorites, your language choice and the last resort list on your device so the app works offline. There are no advertising or analytics cookies.
5. Who we share it with
We use service providers to run Japow, and they process information only for that purpose:
- A payment processor handles payments.
- An email delivery service sends our email.
- A hosting provider runs our servers.
- The push services run by your browser's maker carry push alerts to your device.
- A weather data provider supplies the forecasts. We send it resort locations only, nothing about you.
Some of these providers handle information outside Japan, in the United States and Finland.
We don't sell your personal information. We may disclose it where the law requires, and it may transfer to a successor in a merger, sale or acquisition.
6. How long we keep it
- Account information is kept while your account is active.
- When you ask us to remove your account, we delete your personal information within 90 days, except what the law requires us to keep.
- Records of alerts we sent are deleted after 90 days.
- Transaction records are kept for 7 years.
7. Security
We use technical and organizational measures to protect your information, such as encrypted connections and sign-in codes that expire. No system is completely secure. If a breach affects you, we will tell you as the law requires.
8. Your rights
Under Japan's Act on the Protection of Personal Information, you can ask us to disclose, correct, delete or stop using the personal information we hold about you. Email support@kakera.app from the address on your account. We reply within 30 days. If you gave consent, such as for email alerts, you can withdraw it at any time. The "Stop email alerts" link in every alert email works without signing in.
Japow is operated from Japan.
9. Changes
We may update this policy. The date at the top shows the latest version, and we will say so in the app or by email if a change is significant.
10. Contact
カケラ
〒150-0043 東京都渋谷区道玄坂1丁目10番8号 渋谷道玄坂東急ビル2F-C
support@kakera.app