Hiragana / Katakana Test is an educational app designed to help users learn Japanese characters. The app focuses on testing the knowledge of Hiragana and Katakana characters, which are two of the three writing systems used in Japanese. With the app, users can practice recognizing and differentiating between these characters.

One of the unique features of this app is the ability to test voiced and semi-voiced sounds. For example, users can learn how to pronounce the character "は" and its variations, such as "ば" (voiced sound) and "ぱ" (semi-voiced sound). This feature helps users develop their pronunciation skills.

The app offers a variety of tests based on different settings. Users can choose their difficulty level (Beginner, Intermediate, or Expert) and the type of test they want to take. The available test types include Hiragana to Katakana, Hiragana to Romanji (for beginners), Katakana to Hiragana, Katakana to Romanji (for beginners), Romanji to Hiragana, and Romanji to Katakana. Additionally, users can select whether they want the test patterns to be sequential or randomized.

Overall, Hiragana / Katakana Test provides a comprehensive and interactive learning experience for those who want to master the Hiragana and Katakana characters in the Japanese language.