
Geekbot is a cheap solution to doing async communication, which is especially valuable in remote teams. I enjoy the level of configuration you have in setting up not only the questions, but which workstreams they post in, which team members have access to it, and when they are notified. Review collected by and hosted on G2.com.
It doesn't always work as expected. Often times I will post an update and it will not post until later, or I will have to refresh the app in order to get prompted. Review collected by and hosted on G2.com.