In early childhood education, one of the biggest challenges is keeping young learners engaged while helping them grasp foundational concepts. Many existing applications and tools attempt to solve this issue using technology. However, most of them, like Khan Academy Kids, ABCmouse, or Google Expeditions, are either passive, focusing on videos and simple tapping, or offer limited interaction. They often miss the hands-on, multisensory experiences that children aged 4 to 8 need most. Although Augmented Reality (AR) and Virtual Reality (VR) technologies have great potential for experiential learning, their use in early education remains largely unexploited. Study Buddy is a VR-based interactive learning app designed to fill this gap. It features real-time handwriting recognition in the Air Canvas module, finger gesture detection through neural networks in Finger Counting, and immersive 3D exploration in Solar System VR. The app includes a reward system that encourages curiosity and repetition. Instead of relying on passive learning, it promotes active participation, allowing children to physically trace letters, count using hand signs, and explore concepts in a 3D space. It emphasizes real-time feedback, AR-powered phonics, and rewards. It also offers an interface specially designed for young learners. By integrating these technologies into a single experience, the application turns screen time into meaningful, hands-on learning. Study Buddy is designed as a supplementary learning tool, not a replacement for traditional teaching.