Trigonometry Reference is a free Android app designed to help students brush up on their trigonometry skills and ace their next exam. Developed by Steve KB, this app offers a comprehensive study guide that covers all the essential topics, including Triangle Definition, Unit Circle, Trig Functions, Facts & Properties, Formulas & Identities.

With a clean and easy-to-use interface, Trigonometry Reference is perfect for students of all levels. The app is well-organized, making it easy for users to navigate and find the information they need quickly. The study guide is concise and informative, and the app includes helpful illustrations and diagrams to aid in understanding.

For those who want to support the developer, there is also a donate version available. Whether you're a high school student or a college student, Trigonometry Reference is a must-have app for anyone who wants to improve their trigonometry skills and excel in their studies.