I do suggest Selfie Stick Pro user friendly and affordable selfie stick.
RumoredNow's app is pretty sweet. Or you can use Intellicam, which triggers a shot by voice (e.g. say "cheese"). It also has face detection so it beeps when your face is in view.
https://www.windowsphone.com/en-us/store/app/intellicam/022253b7-5492-474b-bd89-4c18afb8e996
