Based on some early customer development, I have found that people who want to be productive go on a spree of gathering too many productivity tools around them. As I mentioned earlier, some people feel productive just by getting a productivity tool. So even if a user has downloaded the app, they now have to migrate their existing items and start to fully incorporate this new tool into their life. It's much easier to purchase and download a tool than to actually dedicate their lives to it.

So from that perspective, I would say retention and engagement are low since not many are willing to put the time and effort to do that tool justice.