Your privacy
Learn Mah Jongg is free, and you can use every chapter without signing in. This page explains what we keep if you choose to sign in, what we count when you visit, and why.
Without signing in
Your place and your practice answers are saved in this browser, on this device. They aren’t sent to us. Clearing this browser’s site data removes them. We don’t show ads or use advertising trackers.
Search
The course’s search works inside your browser. What you type in it isn’t sent to us or anyone else, and the visitor count leaves it out.
Visitor counts
To learn which chapters help people, we count visits with Plausible, a visitor counter built for privacy. For each visit it records the page you opened, the website that sent you here, your browser and type of device, your country, region and city (never your exact location) and how long you stayed. It uses no cookies, never stores your IP address and can’t follow you from one day to the next or to other websites. We see only totals, never who visited.
If you sign in
Signing in is optional. It keeps an online copy of your place, so you can pick up where you stopped after clearing site data or on another device. There’s no password: to sign in, you ask for a link and we email it to you.
If you sign in, we keep:
- your email address, to send you sign-in links;
- the online copy of your place and your practice answers;
- whether you said yes to news emails, with the date and the exact words you agreed to.
We don’t ask for your name, your birthday or anything else. We never sell your email address.
News emails
News emails are a separate yes. The box for them starts empty, and signing in alone never adds you to the news list. Every news email has an unsubscribe link, and you can use it at any time.
If you send us a message
The form on Contact us asks for your email address, your message and, if you like, your name. We keep them to answer you and use them for nothing else. Sending a message doesn’t sign you in or add you to the news list.
Who holds your information
We use 3 companies to run sign-in, email and visitor counts for us:
- Supabase keeps your sign-in, the online copy of your place and any message you send us.
- Resend delivers the sign-in emails and passes your messages on to us. It also keeps the news list and sends news emails, only to people who said yes.
- Plausible counts visits to the course, as described above. It keeps the counts in the European Union.
Deleting your account
Open Signed in at the top of any chapter, or on the main menu, and choose Delete my account. That removes your email address, the online copy of your place and your news choice for good. Your place in this browser stays until you reset it from the main menu.
To stop news emails but keep your account, use the unsubscribe link in any news email.
Age
Sign-in is for people aged 13 and over. The course itself is open to everyone.
Questions
Send us a message on Contact us, write to us at Learn Mah Jongg, 1536 State Route 23, Unit #5130, Wayne, NJ 07470, or call us at 862-217-4032.
Last updated 2 November 2026.