@isamaris As far as I'm aware, there are no apps, but you can email your picture to the site & then go from there.
If you go to the Upload page, you can see your personal mail-in address under the 'You can also upload photos by emailing them to' bit.
If you go to the Upload page, you can see your personal mail-in address under the 'You can also upload photos by emailing them to' bit.