Keet

Keet is a personal learning app built around one promise: type in anything you are curious about and get a real course back. Instead of searching for a course that happens to exist, you describe the topic, optionally tune the depth, complexity and narration style, and Keet generates a curriculum with short explainer videos and interactive activities. Each course is organized as a roadmap of modules and lessons, with lessons unlocking in prerequisite order so that finishing the course means covering every concept in a sensible sequence. A typical lesson is a four-minute video followed by several games: multiple choice, swipe, order, connections and custom formats that test recall rather than passive watching. The homepage shows example roadmaps such as Abstract Set Theory with modules on topological spaces, continuity and compactness, plus lighter courses like The Big Bang, Mongol War Tactics and the History of New York City. Keet is the work of a small New York team backed by Y Combinator's Summer 2024 batch, and it ships as a native iPhone app distributed through the App Store. Accounts include a daily streak, a today's lesson card and a list of recent courses, so the app behaves like a habit-forming study companion rather than a one-off video generator. A friends feature shows what other people are generating and how they are progressing, and the app tracks quiz performance so you can see which concepts are sticking. Access is freemium: the download is free, new accounts receive two free course generations, and further courses require purchasing credits. At the time of writing the site does not publish a standalone pricing page, so credit packs are surfaced in-app, while the App Store listing advertises optional Keet Monthly and Keet Pro Annual in-app purchases. Keet is not a general-purpose chatbot or a video editor; the output is a fixed course structure you work through, which keeps the experience focused on finishing a subject rather than prompting endlessly.