Learntime is an innovative learning application designed to enhance long-term knowledge retention and comprehension. It employs scientifically proven techniques such as active recall and spaced repetition, coupled with AI-powered support, to help students solidify information they've already learned from various sources like lectures, books, or online courses. The app prompts users to engage in unprompted recall sessions, mimicking real-world scenarios where information needs to be retrieved without cues. An AI mentor provides personalized hints and feedback during these sessions, helping users identify and address gaps in their understanding. Learntime's spaced repetition algorithm optimizes the review schedule, ensuring that topics are revisited at increasing intervals to reinforce long-term memory. The app also features quick quizzes that target weak areas, allowing for efficient, focused study sessions. By focusing on the post-learning phase, Learntime complements existing educational resources and methods, helping students transform short-term knowledge into lasting understanding. It's particularly useful for exam preparation, professional development, and lifelong learning, offering a structured approach to knowledge retention that adapts to each user's learning pace and needs.