Privacy Policy

Last updated: 2026-05-12.

Crew Builder ("we", "us") is a One Piece Trading Card Game deck-building app for iOS and Android. This policy explains what data we collect, why, and how to control it.

What we collect

• Account data when you sign in: your email (magic link), Apple ID (Sign in with Apple), or Google account (Continue with Google). We never see your password. Apple Sign-in may relay a private email; we honor that.
• Your decks and ownership data you create in the app: deck name, leader, card list, and per-card "I own N copies" markers. Stored locally on your device and, if you're signed in, mirrored to our database to sync across devices.
• Anonymous app usage analytics via PostHog: which screens you visit, which decks you generate (leader + playstyle only), and which buttons you tap. No personal information is included. You can disable analytics in Settings.
• Crash reports via Sentry: stack traces and device model when the app crashes. No personal information.

What we don't collect

• We do not sell your data.
• We do not share your data with third parties for advertising.
• We do not track you across other apps or websites.
• We do not record your screen, microphone, or camera.

Where your data lives

Local data lives on your device. Cloud data (when signed in) is stored in Supabase, a hosted PostgreSQL provider, with row-level security so your data is only readable by you. Card images are served from Cloudflare R2.

How to delete your data

Open the app → Settings → Delete account. This irreversibly removes your account and all server-side data within 30 days. Local data on your device is removed immediately on sign-out. You can also email support@opcrew.app to request deletion if you no longer have access to the app.

Children

Crew Builder is rated for ages 4+ (per App Store / Play Store conventions for tabletop game tools). We do not knowingly collect personal information from children under 13. If we learn we have, we'll delete it promptly.

Changes

If we change this policy materially we'll update the "Last updated" date and (when signed in) show an in-app notice on next launch.

Contact

Questions: support@opcrew.app.

Crew Builder is not affiliated with Bandai, Eiichiro Oda, Shueisha, or Toei Animation. Card images and names are property of their respective owners.