Text mode is for reading immersive, natural passages while the reading of each word stays visible in the target language. Word, grammar, script, and meaning sit in one glance, so they stick without drilling isolated lists first.
The level selector starts you on short, simple sentences and moves you toward denser, more natural ones. Begin with a single unknown word. Keep reading. Exposure does the rest.
Vocab game is a different cut of the same idea. Instead of a story, you get a frequency circle: core words in the center, then inner, outer, and expert on the rim (the layer many natives barely use). Tapping a card cycles its mark. With Tap if unknown a tap goes unmarked → unknown → known → unmarked; with Tap if known it goes unmarked → known → unknown → unmarked (the tap-mode button switches between the two). Unknown marks what you still need; known veils what you already own. Native lists share these marks; Phrases keep their own. Show unknown turns the grid into only those marks. ZH · JA · KO lines the same concept up in three scripts.
Free vs Premium. Free includes the first 10 texts of every level (Beginner / Intermediate / Hard), the first 10 pages of the Vocab game, the first 50 Monad sentences, and the first 100 words of each Native-lists ring (Core → Expert). Beyond those, the page selector and mode pagers show 🔒 and open Upgrade.
Have fun diving into the languages you want to learn; languages open doors.