You are downloading the PhotoMath XAP file v18.104.22.168 for Windows Phone. PhotoMath is a free and useful Education app: PhotoMath is the world's first camera calculator. Just point the camera towards a mathematical expression, and PhotoMath instantly displays the ... You can now download the offline XAP file to install & try it.
Download Locations for PhotoMath 22.214.171.124 XAP file
Important Notice: Now Due To Unspecified Limitations, You Can Not Use The Offline XAP File To Install It Any More.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline PhotoMath XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.