We created a Template for both Left and Right-hand user which had 70 different participants and we captured their single hand movement on actual devices.
Based on data captured we made templates for Left and Right hands & used it for App Usability testing.
Templates are available in PSD and PNG file format if you are planning to use them in your projects.
File are available in Editable PSD and ready to use PNG. Just place them on top of your app screen and voila you can check your app UI Usability in seconds.