BlueKeyboard JP is an IME application for Android's hardware keyboard developed by Elbrain. The program is available for free and also has a Pro version that includes a user dictionary. It is designed to support various types of keyboards.

BlueKeyboard JP is a user-friendly application that works well with different types of keyboard layouts. It provides a seamless typing experience with its easy-to-use interface. The program is lightweight and does not consume too much memory, making it an ideal choice for users who prefer a fast and efficient typing experience.

The Pro version of BlueKeyboard JP offers additional features such as a user dictionary that allows users to add custom words and phrases to the dictionary. This feature improves the accuracy of the text prediction function, making typing even more efficient.