FitMyChair App Information Hub Using the power of Artificial Intelligence (AI) and 3 photos to get quick and precise key measurements for a proper wheelchair fit. QR Marker A QR Marker is needed for precise measurements. Download, print, fold and place on the floor in front of the client for all three photos. Click here to download. FitMyChair App FAQ Click here to download. Helpful Videos Therapist Partner: App Walkthrough Overiew of the FitMyChair experience for therapists using the app