No doubt this is not Tripit's fault. But I used to be able to log in on the IOS app with one click using my Google account credentials. Now I can't - I'm being pushed into using Google Plus, which I have no desire to sign up for.
Of course, I can just use my email address and a password, but I resent this reduction in functionality. So much so, that I've decided to give up on Tripit after several years as a user.