About
Capture unfamiliar words from books using your camera, get AI-generated definitions, and organize them with book details and tags. Review learned words through flashcards and track your vocabulary progress.
What's New in Kotonoba
1.1.4
August 4, 2026
・細かな修正を行いました。
Developer apps
FAQ
What is Kotonoba?
Kotonoba is an app designed to help you record and learn new words you encounter while reading books. It uses OCR to capture text from your camera and provides AI-generated definitions.
How does Kotonoba help me learn words?
Kotonoba allows you to record words along with their meaning, book source, and page number. It also offers 'viewing mode' and 'test mode' flashcards for reviewing and reinforcing your vocabulary.
Can I use Kotonoba offline?
AI-generated definitions require an internet connection. However, core features like recording words and books, and reviewing flashcards, may function offline after initial data retrieval.
What devices does Kotonoba support?
Currently, Kotonoba is available for iPhone devices, as indicated by the supported devices list.
How often is Kotonoba updated?
The app was last updated on August 4, 2026, with version 1.1.4. This suggests a recent update, but future frequency is not guaranteed.
What is the age rating for Kotonoba?
Kotonoba has an age rating of 12+, making it suitable for users aged 12 and above.
Does Kotonoba have ads?
Yes, Kotonoba contains advertisements. This is indicated by the 'hasAds' flag being true in the application data.
What are the in-app purchases for Kotonoba?
The app supports in-app purchases, though specific details about what these purchases entail are not provided in the description.