Privacy Policy

Last updated: October 11, 2026

This is a translation for reference. The Japanese version is the authoritative text; if the two differ, the Japanese version governs.

1. Operator

Your Google account identifier, email address, display name and profile image URL (used for sign-in)
Your profile (name, grade, date of birth, gender, height, weight, events, units, season start and time zone)
Your marks (date, event, practice or competition, mark, wind and note)
Your condition, fatigue, sleep, injuries or discomfort and practice notes for each day
Your competitions (name, date, venue, call room place and time, start time and notes)
Your goal marks and the bests you enter by hand

Grade, date of birth, gender, height, weight and the injury field are optional. Write only what you need about injuries or discomfort.

We use it for nothing else. We do not use it for advertising or sell it to anyone.

Only you can see your information. There is no feature that shows it to other users.

Neon: All of the information above. Used as our database, stored in Singapore
Vercel: Your requests to the site. Used to serve the site, processed in Singapore
Google: The sign-in process. We receive your identifier, email address, display name and profile image URL from Google
Open-Meteo: The latitude and longitude of your location, rounded to about 100 m. Sent directly from your browser only when you ask to show the weather. It is not sent to our servers and is not stored

We use only the cookie that keeps you signed in.

We keep it until you delete your account. When you do, we delete all of the information above.

You can correct your marks and profile on your own screens. For account deletion or any other request, contact us at the address above.

If you are a minor, get your parent's or guardian's consent before using Jumps Lab.

When we change this policy, we will update this page. The terms of use are in the Terms of Use.