The AI Posture Reminder App is an AI-powered tool designed to assist in improving the user's posture during their workday. It does this by tracking and observing the user's posture while they use their Mac, and then sends in real-time alerts once it detects slouching. Leveraging the latest AI and Computer Vision technologies including Deep Neural Networks and personalized machine learning models, this app also offers on-device training and a depth analysis feature. A key aspect of this tool is its privacy features, ensuring that no data leaves the user's device and it does not require a constant internet connection to function. It provides a tailored detection system that adapts to the unique posture of each user also offering customizable accuracy. Further to its utility, the app houses a user-friendly interface and quick setup, making it easy for beginners to start using. Additionally, its operations are not confined by physical space or internet access as it can operate anywhere, be it home, work, cafes, or even a plane. Users have found it helpful for reducing back and neck strains and improving posture health.