As a church, you want to build a strong sense of community. As a whole church, but often also as a collection of communities: Small Groups, Cell Groups or House Churches. Ideally, people get together often, doing the things they love, enjoying fellowship with each other.
One problem is that larger groups may not know what everyone enjoys doing. This is often discovered seredipitously - two people suddenly find out they both love hiking. Another problem is that everyone is busy and most people don't enjoy the working of scheduling - e.g. figuring out who is available for a bike ride in the next couple of weeks.
Konnektr can make this easy. It handles figuring out what people like to do and automates all the scheduling. Konnektr can do this for groups of 2 to 200 people.