Lost streak on website
I used the iphone app only for a period of about 10 days and have a 15 day streak now. Big surprise, the website only displays a 3 day streak.
Do you have the Coach enabled? It's possible that you're meeting your goals for Coach and therefore able to maintain your streak (even by missing a day or two). The website only shows site streak, which doesn't allow you to miss a day. We're going to make this clearer and unify these experiences.