Is Peter Charltons Matlab PPG peak detector more accurate than the Apple Watch Ultra?

We strongly doubt about this. Charlton is Biomedical Engineer specialising in signal processing for wearables and advertises on linkedin with the Matlab PPG peak detector: https://www.linkedin.com/in/peterhcharlton/?originalSubdomain=uk But are there any jobs for this project? And is the Matlab PPG peak detector HeartPy Python code rewritten for Matlab? Why then does he not help us to …