Iphone Vs Android is an interesting debate.
I carry both...And have a Blackphone on order.
I use my Android for business...Have a Galaxy Note 3 with the pen...As a work tool it's priceless. - As a personal phone, it's a failure.
My Iphone I use significantly more...I really enjoy the Iphone. As a work phone, it's meh. It doesn't offer the same level of encryption as the Galaxy and flash is always an issue...However, that being said, I still prefer it to the Galaxy due to it's ease of use.
Ballistics AE with Litz's profiles are absolutely dead nuts on.
Quite frankly, my Grandmother learned how to use an Iphone without issue so, I'd say get an Iphone 5c.
It's a no frills Iphone with some decent space...Fits your requirements and is cheap.