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Kotoba Forest
Grow your JLPT vocabulary into a living forest
Kotoba Forest turns Japanese vocabulary study into a forest-building game. Start with a 20-question diagnostic, choose a JLPT N5–N1 goal, then plant and water words with spaced repetition. Learn 10,000 words with native audio, example sentences, mock tests, weakness drills, and animal mini-games. Available on iOS and Android with interfaces in English, Traditional and Simplified Chinese, Korean, Thai, Vietnamese, and Indonesian.
Top comment
Hi Product Hunt! I built Kotoba Forest after seeing how easy it is to start learning Japanese—and how hard it is to keep reviewing vocabulary after the first week. I wanted every review to leave something visible behind. In Kotoba Forest, words become seeds. You begin with a 20-question diagnostic, choose a JLPT goal, then use spaced repetition to plant and water a personal forest. The app covers 10,000 JLPT N5–N1 words, with native audio, mock exams, weakness drills, and animal mini-games. It supports seven interface languages on iOS and Android. I’d especially love feedback on the first-session experience: does the diagnostic make the next step clear, and does the forest give you a reason to return tomorrow? Thanks for trying it!
About Kotoba Forest on Product Hunt
“Grow your JLPT vocabulary into a living forest”
Kotoba Forest was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #110 on the daily leaderboard. Kotoba Forest turns Japanese vocabulary study into a forest-building game. Start with a 20-question diagnostic, choose a JLPT N5–N1 goal, then plant and water words with spaced repetition. Learn 10,000 words with native audio, example sentences, mock tests, weakness drills, and animal mini-games. Available on iOS and Android with interfaces in English, Traditional and Simplified Chinese, Korean, Thai, Vietnamese, and Indonesian.
On the analytics side, Kotoba Forest competes within iOS, Education and Languages — topics that collectively have 204.3k followers on Product Hunt. The dashboard above tracks how Kotoba Forest performed against the three products that launched closest to it on the same day.
Who hunted Kotoba Forest?
Kotoba Forest was hunted by Steven Huang. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Kotoba Forest including community comment highlights and product details, visit the product overview.