Privacy Policy

Ultimate Pianist · effective August 18, 2026

Ultimate Pianist ("the game", "we") is a piano learning game available at app.ultimatepianist.com and as an iOS/iPadOS app. This policy describes what data the game handles and why. It applies to both the website and the app, which run the same software.

What we collect

• Account data (optional). You can play without an account. If you create one, we store the email address, sign-in details and username you provide, handled by our sign-in provider Clerk.
• Gameplay data. Scores, accuracy, grades, career and level progress, and (when you finish a run while signed in) a replay of your performance (the timing of the notes you played). Replays let you re-watch and download your own performances from any device.
• MIDI input. Notes from a connected MIDI keyboard are processed in real time to run the game. They are not recorded except as part of the replays described above.
• Usage analytics. Device type, platform, screen size, language, the screens and features you use, and experiment (A/B test) assignment, used to fix problems and improve the game. Your IP address is processed for security and abuse prevention.
• Local storage. Settings and progress are cached in your browser or on your device so the game works offline and remembers you between sessions.

What we don't do

• We do not sell your data.
• We do not show third-party advertising.
• We do not collect payment details; the game currently has no purchases.

Service providers

The game runs on infrastructure operated by these processors, who handle data only on our behalf: Clerk (sign-in), Supabase (database and file storage), Vercel (hosting), and Resend (email delivery, if you receive account emails). Emails from us include an unsubscribe link.

Retention and deletion

Account and gameplay data are kept while your account exists. You can delete your account at any time from inside the game using Settings → Delete account, which permanently removes your account, sign-in, scores, replays and progress from our servers. Anonymous usage statistics that no longer identify you may be retained. You can also email us (below) and we will delete your data for you.

Children

The game is suitable for all ages, but accounts are intended to be created by adults or with a parent or guardian's consent. We do not knowingly collect personal information from children under 13 without such consent; if you believe a child has provided us data, contact us and we will delete it.

Changes

If this policy changes materially, we will update this page and its effective date.

Contact

Lionel Yu · Musical Basics · lionel@musicalbasics.com