
Description: zkanji is a free and open-source kanji study tool for Japanese learners. It allows you to efficiently learn and review kanji with flashcards, quizzes, handwriting recognition, and content that adapts to your level.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Obenkyo is a free and open source spaced repetition flashcard application for learning languages. It supports creating decks, adding cards with text, pictures and audio, and reviewing cards using spaced repetition to maximize memorization.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API