Sumire Japanese Keyboard Lite F-Droid

Private offline Japanese keyboard with user dictionary and snippetsMIT

Japanese Traditional Time

Clock widgetMIT

Jiten Japanese Dictionary

Japanese dictionary based on jmdict/kanjidic (offline version)AGPL-3.0-or-later

Jiten Japanese Dictionary [Online]

Japanese dictionary based on jmdict/kanjidic (online version)GPL-3.0-or-later

Sumatora

Offline Japanese dictionaryGPL-3.0-or-later

Jamu

An app to help learn JapaneseAGPL-3.0-only

Kaku

Japanese OCR DictionaryBSD-3-Clause

Kanji Dojo

Learn & practice writing Japanese charactersGPL-3.0-or-later

WaDoku

Japanese-German online dictionaryCC-BY-SA-4.0

JS-Dict

Japanese-English dictionary app powered by Jisho.org.GPL-3.0-only

JMdict droid

A Japanese to English dictionary, based on JMdict.GPL-3.0-only

Fcitx5 (Anthy Plugin)

Anthy (Japanese input method) engine support for Fcitx5LGPL-2.1-only

Kakugo

Learn Japanese with KakugoGPL-3.0-or-later

MyKanji

A simple Android app to help you practice and memorize basic Japanese kanji.GPL-3.0-only

The Kana Quiz

Learning Japanese? Test and train your knowledge in Hiragana or KatakanaApache-2.0

WaniDoku

Improve your Japanese with WaniKani context sentencesGPL-3.0-only

Nani?

Offline Japanese dictionaryGPL-3.0-or-later

Fujiten

Japanese dictionary made with FlutterGPL-3.0-only

Zanshin Calendar

Tibetan and Japanese lunar calendars with their almanac readings, offlineMPL-2.0

TABI

Japanese from zero in five minutes a day. Kana, phrases, signs, trains.GPL-3.0-or-later