Scan your hand. See what you're building.
MahjCheck™ identifies your American mahjong tiles from a photo and shows you which Check against your official card, new cards coming soon.
Your new favorite practice partner.
Built by an American mahjong player, for American mahjong players.
Snap and scan
Point your phone at your tiles. MahjCheck™ reads your hand in seconds, no typing, no tapping through menus.
2025 and 2026 cards, covered
Check your hand against both current cards. Switch between them anytime.
See your closest hands
MahjCheck™ shows you which hands you're building toward, so you can spot opportunities you might have missed.
Practice anywhere
Sharpen your hand-recognition between games. Perfect for new players learning the cards and veterans trying new strategies.
See it in action.
Clean, quick and designed for the table — not buried under menus.
Made for every kind of player.
New players.
Learn the cards without the overwhelm.
Experienced players.
Practicing new strategies and spotting hands faster.
Mahjong groups and clubs.
A shared tool everyone can use.
Anyone who loves the game.
And wants to play with more confidence.
A Celebrate Everything Product.
Made by players, for players.
MahjCheck™ is made by Celebrate Everything, a small business built around the things worth celebrating — every hand, every win, every game around the table.
SUPPORT / CONTACT
We're here.
Whether you've found a bug, have a feature idea, or just want to say hi — we'd love to hear from you.
TERMS OF SERVICE
Welcome to MahjCheck™. These Terms of Service ("Terms") are a legal agreement between you ("you," "your," or "User") and Celebrate Everything Apparel & Design, LLC ("we," "us," or "our") governing your use of the MahjCheck™ mobile application, the MahjCheck™ website located at celebrate-everything/mahjcheck and/or any and all related services, features, content or functionality thereto (collectively, "MahjCheck™" or "the app").
By downloading, installing, accessing or using MahjCheck™, you acknowledge that you have read, understood and agree to be bound by these Terms, our Privacy Policy (the “Privacy Policy”), and any additional terms, policies and/or guidelines referenced herein, all of which are incorporated by reference into these Terms. By using the app, you represent and warrant that you meet the foregoing eligibility requirements and you have the legal capacity to agree to these Terms, our Privacy Policy, and any additional terms, policies and/or guidelines referenced herein. If you do not meet these requirements, you must not use the app and you must immediately cease all use of the app. If you don't agree to these Terms, you must not use the app and you must immediately cease all use of the app.
1. What is MahjCheck™?
MahjCheck™ is a tool that uses your device's camera and an AI service to help identify American mahjong tiles and suggest hands from the 2025 and 2026 mahjong cards that your American mahjong tiles may be building toward. MahjCheck™ is intended as a practice and reference aid for mahjong players. MahjCheckTM is not affiliated with, endorsed by, or sponsored by the National Mah Jongg League or any other mahjong organization.
2. Who can use MahjCheck™
You must be at least 13 years old to use MahjCheck™. If you are between the ages of 13 years old and 18 years old (or the applicable legal age of minority in your jurisdiction), you may only use the app with the consent of a parent or legal guardian who agrees to be bound by these Terms, our Privacy Policy, and any additional terms, policies and/or guidelines referenced herein on your behalf. By using the app, you represent that you meet this age requirement and that you have the legal capacity to agree to these Terms, our Privacy Policy, and any additional terms, policies and/or guidelines referenced herein. If you do not meet these requirements, you must not use the app and you must immediately cease all use of the app. If you don't agree to these Terms, you must not use the app and you must immediately cease all use of the app. We reserve the right to request proof of age and to terminate accounts of any User who misrepresents their age.
PRIVACY POLICY
This Privacy Policy ("Privacy Policy") is a legal agreement between you ("you," "your," or "User") and Celebrate Everything Apparel & Design, LLC ("we," "us," or "our"). We operate the MahjCheck™ mobile application, the MahjCheck™ website located at celebrate-everything/mahjcheck and/or any and all related services, features, content or functionality thereto (collectively, "MahjCheck™" or "the app"). This Privacy Policy explains what information MahjCheck™ handles, how it's used, and your choices.
This Privacy Policy applies to all information collected through our app, regardless of the device or method used to access the app. This Privacy Policy does not apply to information collected by third parties, including but not limited to information collected by third parties through any application or content that may link to or be accessible from the app.
We built MahjCheck™ with privacy in mind. We don't want your data — we just want to help you enjoy mahjong.
By downloading, installing, accessing or using MahjCheck™, you acknowledge that you have read, understood and agree to be bound by this Privacy Policy, our Terms of Service (the “Terms”), and any additional terms, policies and/or guidelines referenced herein, all of which are incorporated by reference into this Privacy Policy. By using the app, you represent and warrant that you meet the foregoing eligibility requirements and you have the legal capacity to agree to this Privacy Policy, our Terms, and any additional terms, policies and/or guidelines referenced herein. If you do not meet these requirements, you must not use the app and you must immediately cease all use of the app. If you don't agree to this Privacy Policy, you must not use the app and you must immediately cease all use of the app.
A Celebrate Everything Product.
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