A thousand hand-laid layouts. Every tile you clear is a word you are quietly learning - in any of twenty languages. No timer, no streak nagging you, no connection required.
You play mahjong solitaire. Matching a pair shows you a word and its picture, and the game keeps track of which ones you have met. Words you find hard come back sooner; words you know drift away. That is the whole system - there is nothing to configure and no daily quota to keep up with.
Japanese, English, Korean, Spanish, French, German, Italian, Portuguese, Dutch, Swedish, Norwegian, Danish, Finnish, Polish, Turkish, Thai, Indonesian, Vietnamese, Chinese and Russian. Each language carries its own vocabulary, bundled in the app - switch whenever you like, and every language keeps its own progress.
The only ads are rewarded videos you choose to watch, to refill hints or shuffles. No banners, no pop-ups, nothing that interrupts a game. Paper Mahjong Pro is a one-time purchase that unlocks the advanced study tracks and refills those skills without an ad; the thousand levels and the beginner tracks are free. Details are in the privacy policy.