LangBay
Privacy Policy
LangBay is operated by William Langhart (“LangBay”, “we”). This policy covers the LangBay website at langbay.co and the LangBay iOS app. We collect only what we need to run the service, we don't sell your data, and we don't show ads.
What we collect
- Account details. Your email address, and the name and profile picture your sign-in provider (Apple, Google or Microsoft) shares with us, plus which sign-in method you used. If you sign in with Apple and choose to hide your email, we only see Apple's relay address.
- Card photos and your collection. The photos you scan, and what you record about your cards: identification, condition estimates, prices you paid, notes, sales and listing drafts.
- eBay connection. If you connect an eBay seller account, your eBay username and the access tokens eBay issues, so LangBay can publish the listings you choose.
- Subscription status. If you subscribe to LangBay Pro on the website, Stripe processes the payment. We store your plan, its status and renewal date, and Stripe's customer ID. We never see or store your card number.
- Usage needed to run the service. How many AI scans you've used in the last 24 hours (for daily limits) and, if you turn them on in a browser, a web push subscription for notifications.
- Website analytics. On langbay.co we use Google Analytics to see which pages are visited and how the site is used, with advertising features turned off. The iOS app does not include analytics.
- Server logs. Like most websites, our servers record IP addresses and request details for security and troubleshooting.
How we use it
We use this information to provide LangBay: to sign you in, identify and pre-grade your cards, look up prices, keep your collection, process subscriptions, publish eBay listings you ask for, enforce scan limits, keep the service secure, and answer support requests. We don't use your data for advertising and we don't track you across other companies' apps or websites.
Who processes it
We share data only with service providers that run parts of LangBay for us:
- Supabase: sign-in, database and photo storage.
- Amazon Web Services: hosting for our servers.
- Anthropic and OpenAI: AI models that analyze your card photos and research prices. They process this data under their API terms, which don't allow it to be used to train their models by default.
- Stripe: payments for LangBay Pro on the website.
- eBay: only if you connect your account, to publish and manage your listings.
- Apple, Google and Microsoft: sign-in, and Google Analytics on the website.
Price lookups search the web for card names and numbers, not for anything about you. We may disclose information if the law requires it.
How long we keep it
We keep your account and collection until you delete them. Deleting a card removes it and its photos. Deleting your account removes your login, every card and photo, your scan history and your eBay connection, and cancels an active Pro subscription. Copies in backups and logs expire on our providers' schedules, typically within 30 days.
Your choices
- Delete your account at any time: Settings → Delete account, in the app or on the website.
- Export your cards as a CSV file from Settings.
- Disconnect eBay from Settings at any time.
- For a copy of your data, a correction, or anything else about your privacy, email langhartcw@gmail.com. We answer within 30 days.
Depending on where you live (for example California or the EU), you may have additional rights to access, correct, delete or port your data. Email us to use them.
Children
LangBay isn't directed to children under 13 and we don't knowingly collect their data. If you believe a child has given us information, email us and we'll delete it.
Security
Data travels over encrypted connections (HTTPS). Access to your collection and photos is limited to your account.
Changes
If we change this policy we'll update the date at the top. For significant changes we'll also tell you in the app or by email.
Contact
Questions about privacy: langhartcw@gmail.com.