Hiragana/Katakana Drills is an Android application developed by Appicenter LLC. This free app is designed to help users learn and practice Japanese Hiragana/Katakana characters. It offers two types of drills that can be customized by timeout and rounds. The app also includes a Hiragana/Katakana reference chart and lists of similar characters. Additionally, users can practice Japanese words and receive haptic feedback.

This app is perfect for those who want to prepare themselves for trips to Japan or simply want to learn the Japanese language. However, the demo version does not support Katakana, and users will need to upgrade to the pro version to access this feature.