爱作业 is an iPhone application developed by Danatech Inc. It falls under the Education & Reference category and is available for free. The app offers a range of features aimed at making homework checking and correction easier and more efficient.

With爱作业, users can simply take a photo of their math, Chinese, or English homework and instantly have it checked with the correct answers provided. Teachers can also use the app to batch correct the math homework of an entire class in one go. For any incorrect answers, the app provides video explanations to help students understand their mistakes.

In addition to homework checking,爱作业 also offers a practice section with a wide variety of math problems and application questions. These exercises are aligned with the teaching curriculum and can be printed for daily practice. The app also includes a class circle feature where teachers can assign math problems and exercises, and the system automatically corrects them.

爱作业 also features a personal collection of incorrect answers, allowing users to compile their own error book for future reference.

Overall,爱作业 is a convenient and efficient tool for checking and correcting homework, providing video explanations, and offering a range of math practice exercises.