Groovy Grader is an iPhone app developed by Dryrain Technologies LLC. It is a free educational tool that aims to replace traditional paper grading calculators. With Groovy Grader, teachers can enjoy more flexibility, convenience, and ease in grading their students' work.

One of the standout features of Groovy Grader is its ability to handle a large number of questions. It can be configured to work for hundreds of questions and provides options to display the grade as a whole number or with one decimal place. Teachers can choose to view the number of correct answers, the number of wrong answers, or both.

Usability was a top priority in designing Groovy Grader. Unlike other similar apps, Groovy Grader allows users to view 50 or more grades on the screen at once, eliminating the need for constant scrolling. Additionally, it offers the option to turn off the auto-dimming screen, ensuring that teachers can easily access the app without interruptions.

Groovy Grader is optimized for iOS 12 and works seamlessly on iPhones, iPods, and iPads. It provides a convenient and efficient way for teachers to grade papers, saving them time and effort in the classroom.