Hi,
I'm a professional iOS Developer and have created and published 3 complete and big iOS projects during my job and 1 iOS game as a freelancer. I'm good at doing whatever task assigned to me in perfect manner with full motivation. i can work on face recognition feature as well.
Also, i can make you this application which will work on both iPhone and iPad in the given budget.
Looking forward to hear from you about further details as i can get started right away :)
Thanks!