Observed arrival · 2026-08-30
Yumo Puts Japanese Vocabulary on the Screens You Already Check
An offline Japanese-learning app that places a new word on your phone’s Lock Screen or Home Screen every few hours.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
Field notes
Yumo uses platform widgets rather than a lesson feed: the word is generated from the current time and the user’s settings, while the full dataset remains on the device. Its vocabulary spans 7,972 entries across JLPT N5–N1, with 718 N5 words included in the free tier. The page also describes local scheduling, device-based pronunciation, saved words, and guided stroke order, so the learning loop does not depend on an account or an internet connection.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
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