Sample size N = 1. If login is via FB, Google, etc. I delete the app and do not use it. On the other hand I may be too grumpy for my own good. A couple of day

Sample size N = 1. If login is via FB, Google, etc. I delete the app and do not use it. On the other hand I may be too grumpy for my own good. A couple of days ago I came across an iOS app that seemed like a useful idea. Health, exercise etc. related. I downloaded it. It needed a username/password. I nuked the app com my phone. I decided I am not sharing health details (weight etc) at random. And I thought "Oh no, not another fucking username/password pair to go into 1Password." I am happily living without the app. This puts you in a tough spot. If your app requires username/password to work I'm not likely to use it, no matter what system you use -- if there is personal information involved. As I said, sample size n = 1.