價格：免費
檔案大小：757.4 MB
版本需求：需要 iOS 8.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
The apps will cover the essential conversion concepts needed for high school and first-semester freshman chemistry. The app contains leveling features, intuitive graphic user interface, algorithmic based questions (i.e., numbers are constantly changing so a user has plenty of practice), timed questions (gives the users a test scenario which is highly useful for exams), immersive music, and customized videos questions in the app.
支援平台：iPhone, iPad