The idea is pretty cool, I was attending a workshop in Berlin and got to know about the app, when I listened to the app idea and once I listened to the "filter" feature, I was impressed, what I did immediately was downloading the app to see how can I control my online connectivity, I think this is very useful for all startup people, we all need to be connected almost 24/7 and sometimes our families and friends feeling not OK when we are with them chatting, Skyping, answering important emails or even answering a call. (Because we are afraid to miss anything)
Using OFFTIME granted me the option of restricting any access to any app I use at the time I choose without missing any of interactions, and I can back then anytime to respond properly.
The app UX is quite comfy and the UI is very clean.
The app has many features and I think it's worthy the download.