So, there are different features of the Mobile app.
1. For Notifications. There will be a specific Task for sending a Notification to your device. The idea is also that this Task should be able to interact with the answer so you can post a question like "Should I run this?" and the user can answer Yes or No.
This will probably come in January.
2. Server status. The idea is that you can publish your Server details to the cloud and see status on your phone.
3. Server control. It is similar to above but that you can perform some basic operations against your Server.
2 and 3 will probably come in Q1/Q2 of 2020.
There will probably never be a full blown native mobile app as we are working on responsive web client instead which will work in any browser. Hope this answers your questions. Do you have any other requests/feeedback?