Zachai is a SaaS-based exam companion app designed to help students practice for exams with interactive solutions and real-time progress tracking. It offers MCQ and CQ exams, individual suggestions, and nationwide leaderboards. Currently, it provides over 7,000 MCQs and 2,000 CQ questions for HSC-level subjects, with future plans to expand to other academic fields. The app targets students preparing for HSC, English medium exams, medical and engineering admissions, and more. Zachai aims to address offline exam challenges, offering a digital, self-assessment platform for effective preparation and study progress tracking.