How to organize Photo sharing between android and the first ipad c ios 5.1.1?

Question

Android

My grandmother has her first ipad. And modern android phones for the rest of the relatives.
All relatives are hooked on google + and have no problems with poke into a photo and press share via g +. The problem is that the google + app cannot be installed on the first ipad in any way - you need ios 6 and above.
In which photo sharing application I poke, everywhere the requirements are ios 7 and higher. What can be plugged in so that sharing on androids is convenient and so that the pictures on the ipad are visible?
(grandmother does not take a more modern device, g + in the browser on the ipad works disgustingly and destroys the browser to the heap)