Premium Planner compatible apps?

Has anyone found any 3rd party solutions to bridge the gap on some of the shortfalls of Planner Premium? I'm really looking for something that my field team can use to access Planner tasks on their mobile devices. Also, for management, I need a solution that allows them to track tasks assigned to their team members across multiple open plans/projects. Thanks for any suggestions! 

Also, if Microsoft is working on any of these solutions, please put out some communications to help us explain to our bosses that something is being done.