LangBook

LangBook is a language learning tool designed for learners of different levels. It provides vocabulary libraries and grammar tutorials covering major languages such as English, Japanese and French. The app uses a scientific memory curve algorithm to help users arrange review plans and improve memorization efficiency. Its interface is clean and intuitive, and the experience is optimized for jailbroken devices, allowing users to access all advanced features without extra payment. It suits everyday vocabulary building, grammar study and long-term review planning. Interested users are welcome to download and install it from iOSIPA Software Network.