Awesome app but something is missing

I use the app daily and I really appreciate that it is as simple as it can be. Nothing unneccessary. But I really miss to share a list mit someone and work on it together. I guess it is not super easy to implement, but I would love that feature.
But anyways it is a super great app I am using daily for more than a year now.

Littlekes about Clear: To Dos & Reminders, v1.7.4