Use APKPure App
Get 麻雀練習サポート old version APK for Android
It's a alone Mahjong app.
It is a alone Mahjong app
With Support Supports
If you want to know the rules of Mahjong, this site is for you.
(The site below is not affiliated with this app. Try not to ask any questions about the app at the site below.)
http://xn--xxt2020hrkhq4h.com