TRIO is an Android application developed by Trio Education, available for free in the Education & Reference category. The app aims to help engineering students of APJ Abdul Kalam Technological University (KTU) in Kerala by providing them with animated tutorial videos, exam-oriented notes, quizzes, and exams.

TRIO offers the convenience of learning anytime, anywhere, with the flexibility to stream tutorial videos through Wi-Fi or cellular connection. The app also provides exam-oriented notes in PDF format, helping students prepare for their exams in a more organized and efficient way.

Additionally, TRIO includes basic quizzes and exams that allow students to test their knowledge and track their progress. The app also features a KTU Calendar and Syllabus, as well as KTU news, giving students access to relevant information and updates.

Overall, TRIO is a useful app for engineering students in KTU who are looking for a convenient and organized way to learn and prepare for their exams.