Privacy Policy

Last updated 12 August 2026

Jump is a small app for ranking concerts you've been to. This policy describes exactly what it collects, why, and how to get rid of it. It describes what the app actually does today rather than everything it might one day do.

What we collect

Your account

An email address and password when you sign up. Passwords are handled by our authentication provider and stored only as a salted hash โ€” nobody at Jump can read your password. During setup you also choose a username and a home city, and give your date of birth, and you may optionally add a display name, a short bio, a profile photo, and the music genres you like.

Your date of birth is used for one thing: checking that you are at least 13. It is never shown on your profile, never shown to other people, and is not used to target anything at you. If you are under 13 the account is not created and the sign-up is deleted straight away.

What you put in the app

Location

If you allow it, Jump reads your device location once, at low accuracy, and only while the app is open, to work out which city you're in so Explore can show concerts near you. We use it to look up the city name; we do not store a history of where you have been, and we never track you in the background. Declining is fine โ€” Explore then defaults to showing shows everywhere.

Your photo library

Jump asks for photo access only when you choose to attach media to a rating, and only reads the specific items you pick. It does not scan your library.

Diagnostics

If the app crashes, a crash report is sent to our error-monitoring provider so we can fix it. It contains technical information about the failure โ€” device model, operating system version, and where in the code the crash happened. It does not contain your photos, notes, or password.

What Jump does not collect. We do not access your contacts. We have no advertising, no advertising identifiers, and no third-party analytics or tracking SDKs. We do not sell your data, and we do not share it with data brokers.

How it is used

Who else sees it

Jump is built on a small number of services. Each receives only what it needs to do its job.

ServiceWhat it receivesWhy
SupabaseYour account, ratings, notes, photos and videosDatabase, authentication and file storage
ResendYour email addressSends confirmation and password-reset email
SentryCrash diagnosticsTells us when the app breaks
Ticketmaster, setlist.fm, Deezer, Apple MusicSearch terms and city โ€” sent from our server, not your device, and not tied to your accountConcert listings, setlists and song previews

We may also disclose information if the law requires it. Other than that, nobody else gets it.

Who can see your ratings

Your account is public by default: anyone signed in to Jump can find you and see your ratings. You can switch it to private at any time in your profile, after which new followers must be approved by you, and only approved followers can see your posts, photos and notes. Private accounts are also kept out of the public "Everyone" feed entirely.

This is enforced in our database rather than only in the app, so the rule holds regardless of how the data is requested.

Deleting your account

You can delete your account from inside the app: Profile โ†’ Delete account. This permanently removes your profile, ratings, notes, photos, videos, follows, likes and comments. It cannot be undone, and we do not keep a shadow copy.

Concert, artist and venue listings are shared catalog data and are not personal to you, so they remain after deletion. Backups are overwritten on their normal cycle, within 30 days.

How long we keep things

Your content stays until you delete it or delete your account. Crash reports are kept by our monitoring provider under their own retention schedule and are discarded automatically; they are not kept indefinitely.

Security

Traffic is encrypted in transit. Access to your content is enforced at the database level, not merely hidden in the app. Passwords are stored only as salted hashes. No system is perfectly secure, but we do not collect data we do not need, which is the most reliable protection available.

Children

Jump is for people aged 13 and over. We ask for your date of birth when you set up your profile and do not create an account for anyone younger โ€” the sign-up is deleted rather than kept. We do not knowingly collect information from children under 13. If you believe a child has created an account, email us and we will remove it.

Your rights

You can view and edit your information in the app, and delete all of it at any time using account deletion. If you are in a region with additional rights over your personal data โ€” such as the UK, EU or California โ€” you may also request a copy of what we hold, or ask us to correct or delete it, by emailing the address below. We do not sell personal information.

Changes

If this policy changes materially, we will update the date at the top and, where the change is significant, tell you in the app.

Contact

Questions, requests, or anything that looks wrong: shi.peter.zhang@gmail.com.