Moji
Learn Japanese on Your Lock Screen
App StoreDescription
Moji turns every phone glance into passive kanji learning. A kanji with reading and meaning lives on your lock screen widget, rotating on a smart schedule powered by spaced repetition. When you're ready to study, open the app for focused flashcard review with SM-2 scheduling, streak tracking, and JLPT progress. Set your experience level, daily new kanji limit, and widget refresh rate during onboarding — then let your lock screen do the rest.
What people are saying
"Finally an app that fits into my day without demanding it. I pick up a kanji every time I check my phone."
sakura_learner · May 12, 2026
"The lock screen widget is genius. I've learned more kanji in two weeks than in months of textbook study."
animefan_jp · Apr 28, 2026
"Clean, simple, and actually works. The spaced repetition keeps me reviewing at exactly the right time."
jlpt_candidate · May 3, 2026
"Love that I can set my JLPT goal and the app just handles the rest. N4 here I come."
tokyo_dreamer · Apr 15, 2026
Screenshots
Lock Screen Widget
Kanji Detail
Today Home
What you can do with Moji
Lock Screen Widgets
Kanji, readings, and meanings on your lock screen — learn every time you check your phone.
Spaced Repetition
SM-2 flashcard review with Again, Hard, Good, and Easy — intervals tuned to how well you know each character.
Progress & Streaks
Track your streak, cards due, JLPT readiness, and milestones as you work through N5–N1.
Browse & Search
Search 2,000+ kanji by character, reading, or meaning. Filter by JLPT level and see your mastery status.