I used to have this really bad neck paint from staring at my phone, and stumbled on this app a few weeks ago for Android phone users called "Posture".
http://www.guidingtech.com/65025/text-neck-android/
Basically it runs in the background of your phone and let's you know if your holding your phone in a neck straining position. Honestly it's helped me be more mindful of my posture through the day - just thinking about it more often. Figured I'd share it with everyone who might have similar neck pain 
