TillWhen was developed as a solution for Fountane LLC and for my personal use and is hence priced free.
I don't expect it to grow a userbase.
Not a fan of data mining so , TillWhen doesn't record any personal info other than an Email and Name that is needed to identify you to be able to add you into projects. The only other data TillWhen has is the one you choose to store on this managed version.
A Self Hosted version is in the making and you can choose to use that if you don't want anything to be stored by a 3rd party provider.