受験化学　化学式構造式マスター is an educational app designed to help students master chemical formulas and structural formulas through memorization. Developed by Hikaru Takeuchi, this app is available for iPhone users and is free to download.

With a focus on fundamental chemistry, inorganic chemistry, and organic chemistry, the app offers a selection of 150 commonly encountered substances in university entrance exams. By inputting chemical formulas and structural formulas using the keyboard, users can learn and practice in a gamified manner.

The app also offers two different types of quizzes: converting compound names to chemical formulas and converting properties to chemical formulas. The latter type allows users to deepen their knowledge of various properties related to substances, such as molecular weight, color, acidity, and basicity.

If you're looking to master chemical formulas, download 受験化学　化学式構造式マスター and start practicing today.