While you are on the site, in your browser find and click "Add to Home Screen" A CGN beaver app icon will then be created to your phone that is directly link to the site.
Note: This feature may not be available in some browsers.
My wife took mine with my cell phone and I uploaded it straight to the online renewal. All she did was stand maybe 3 feet from me and took a straight on pic of me from the shoulders up. Zero issues and I had my Pal renewal 9 days later.
You trim the passport photo to the size needed, not very hard use scissors, you can also use your own camera or Shoppers Drugmart actually has a size for a PAL but it's 20 bucks.
I just use my camera