Immersion Reader is an open‑source iOS app for reading Japanese ebooks and mining vocabulary. It offers one‑tap dictionary look‑ups using imported Yomitan dictionaries, offline operation, and quick export of saved words to Anki via Anki Dojo.
Category: Japanese
One‑tap lookup
Works fully offline
Imports Yomichan dictionaries
Exports to Anki
Open‑source MIT
Optional built‑in browser
Immersion Reader is a free, open‑source ebook reader created by Mathew Chan to streamline vocab mining on iOS. It wraps the TTU Reader engine and adds a lightning‑fast popup dictionary plus Anki export so you can combine reading and study.
All levels of Japanese learners who read ebooks on iPhone or iPad and want a fast mining workflow.
Install from the App Store, add EPUB or TXT files via Files, then import Yomichan .zip dictionaries and optional frequency lists in Settings.
Open a book, tap a word for definitions and pitch info, then press “+” to save it. Review saved terms in the Vocab tab and export to Anki Dojo, or switch to the in‑app browser for web mining.
Load a frequency list first to spot high‑value words, and map a two‑finger swipe to quick‑save cards for faster sessions.
iOS‑only and still in rapid development, so some UI elements feel rough; large dictionary imports can be slow.