You will have to transfer the files from your phone through iTunes and then add them into the application through the Import function. Lenovo Photo Master basically uses the folders on your computer to display the images contained.
You will need iTunes to transfer the files. You can download iTunes from the following link: https://www.apple.com/itunes/download/
After the files have been transferred, use Lenovo Photo Master's Import function to locate the directory with the files to add them.