Varsity Tutors LLC has launched a free Android app called Calculus 3: Practice & Prep, which is designed for students who are struggling with Calculus 3. The app provides a wide range of features such as diagnostic tests, practice tests, interactive syllabus, flashcards, and much more. It is an all-in-one solution for students who need guidance and extra study time.

Calculus 3 is a course that covers three-dimensional space, partial derivatives, applications of partial derivatives, multiple integrals, line integrals, and surface integrals. With the Varsity Tutors app, students can review and learn these topics with ease. The app offers 150+ timed practice tests that can help students evaluate their strengths and weaknesses. Additionally, the app has a timed question of the day feature that lets students track their daily progress.

The Varsity Tutors app's interactive flashcards are another excellent feature that helps students challenge their memory and retain essential concepts from Calculus 3. Overall, the app is an excellent resource for students who want to improve their Calculus 3 skills.