Privacy Policy

Last updated: August 14, 2026

This policy explains how MAHJ MAHJ (operated by Lucky Media Corp, “we,” “us”) handles information across the MAHJ MAHJ website (mahjmahj.co) and the Mahj Mahj iOS app. We built MAHJ MAHJ to help people find mahjong tables, learn the game, and score their hands — and we collect as little personal data as possible to do that.

You do not need an account to use MAHJ MAHJ. We do not sell your personal information, and we do not use it for third-party advertising or cross-app tracking.

Newsletter & email signup

If you sign up for the MAHJ MAHJ newsletter on the website, we collect your email address to send you the newsletter. Delivery is handled by Beehiiv, our email service provider, and we keep a first-party backup of signups in a private database (Notion) so your subscription isn’t lost if we change providers. We use your email only for the newsletter — never for third-party marketing — and every email includes an unsubscribe link. You can also ask us to delete your email entirely at the address below.

Organizer claims

If you submit the “claim this listing” form as an event organizer, we collect the contact details you provide so we can verify that you run the listing and follow up with you. This information is stored in our private operations queue, used only for that verification handshake, and never sold or shared.

Instagram & Meta platforms

MAHJ MAHJ maintains an Instagram presence, operated through Meta’s APIs under a Lucky Media Corp developer app. Through those APIs we publish our own content, read engagement metrics for our own accounts, and manage comments and direct messages sent to our accounts. If you comment on our posts or message us on Instagram, that content is processed through Meta’s platform so we can read and respond to it; we handle it under Meta’s Platform Terms and do not use it for advertising or sell it. The MAHJ MAHJ website does not send your browsing data to Meta — there is no Meta pixel or Facebook tracking on this site. We do not keep a separate copy of your Instagram comments or messages outside Meta’s platform. If you’d like a comment on our posts removed or a message conversation with us deleted, email the address below and we will remove or hide it through our Instagram management tools.

Location

If you grant location access, the app uses your location to sort nearby mahjong events by distance and to determine your city. Your precise coordinates stay on your device — we do not send or store your GPS location on our servers. The only thing derived from your location that leaves your device is the name of your city, and only if you choose to receive event alerts (see below). Location access is optional; the app works without it.

Notifications

If you opt in to push notifications, we store your device’s notification token and your chosen city so we can send you alerts about new mahjong events in that city. Reminders for events you save are scheduled locally on your device and are not sent to us. You can turn notifications off at any time in iOS Settings.

Camera (Score My Hand)

The optional “Score My Hand” feature lets you photograph a mahjong hand to identify the tiles. When you use it, the image is sent to our service to recognize the tiles (this processing is performed using Anthropic’s AI). We do not retain your photos after the tiles are identified, and the scoring itself runs on your device. The camera is only accessed when you choose to scan a hand.

Information we store

  • Your email address, if you sign up for the newsletter (see above).
  • Contact details you submit through the organizer claim form (see above).
  • A push notification token and your chosen city, if you opt in to event alerts.
  • Your preferences and saved events, which are stored locally on your device.
  • Standard, non-identifying server logs (for example, requests to our event and news API).

On the website, we use Google Analytics to understand aggregate traffic. The iOS app does not include third-party analytics or advertising SDKs.

Service providers

We rely on a small number of providers to operate the service: Apple (push delivery), Anthropic (tile recognition for Score My Hand), Beehiiv (newsletter delivery), Notion (first-party signup and claims records), Google (website analytics), Meta (Instagram platform APIs), and our hosting and database providers (Vercel and Supabase). These providers process data only to provide their service to us.

Event data

Event and news listings shown in MAHJ MAHJ are aggregated from public sources. They are not personal data about you.

Children

MAHJ MAHJ is not directed to children under 13, and we do not knowingly collect data from them.

Your choices & data deletion

You can unsubscribe from the newsletter via the link in any email, and revoke location, notification, and camera permissions at any time in iOS Settings. To request deletion of any data we hold about you — your newsletter email, a claim-form submission, or a stored notification token — email the address below and we will delete it. For Instagram comments or messages, see the Instagram & Meta platforms section above.

Contact

Questions about this policy? Email privacy@mahjmahj.co.