PhotoMath
https://itunes.apple.com/us/app/photomath/id919087726
https://play.google.com/store/apps/details?id=com.microblink.photomath
CalPal
https://itunes.apple.com/us/app/calpal-calendar/id773820013
Here
https://play.google.com/store/apps/details?id=com.here.app.maps&hl=en