About LingoDew

LingoDew is an app for learning English and Japanese from real YouTube videos. You watch with subtitles synced to the audio word by word, tap any word to look it up and save it, and review saved words with FSRS spaced repetition until you know them.

Where the videos come from

Every video comes from a creator's own YouTube channel, and new ones are added every day. Videos play through YouTube's official player, so every view happens on YouTube; we never re-upload them. Each video page names the channel and links back to it. Creators can have their videos removed at any time; see For YouTube creators.

For each video we prepare the subtitles from its audio ahead of time, align every word to the moment it is spoken, add a translation, and attach dictionary entries to the words. Videos whose subtitles or word timing fail these checks are not published.

How difficulty labels work

Every video carries a level: A1 to C2 (CEFR) for English and N5 to N1 (JLPT) for Japanese. The level is estimated from the video's timed subtitles — the words used, sentence length, grammar and speaking speed. It is a guide for choosing what to watch, not an official exam rating, and a level that is off can be corrected by hand.

Dictionary data

• Japanese: JMdictby the EDRDG, used under CC BY-SA 4.0.
• English: ECDICT, used under the MIT licence. Phrase meanings are adapted fromWiktionary(CC BY-SA 4.0).

Example sentences on word pages are real lines from the videos.

Price

LingoDew is free to start, with no account required. The free plan includes every video, subtitle, lookup and review, and up to 50 words in learning per language. Pro (US$4.99 a month, local prices in the App Store and Google Play) removes that limit. Details are on the app page.

Contact

Questions, corrections or feedback: support@lingodew.com. You can also follow LingoDew on X.