SimpleMind is a great tool to assist in understanding business problems. It's an outliner - very easy to use - very intuitive. I find I use it more and more each day and what I create on my Android - I can import to the desktop version of the tool (and vice-a-versa).
Many sheets using GETPIVOT data will copy directly via copy/paste. Trick is to rename the 'PowerPivot data' to yourmodel connection in the pp source model to beforehand. Pivots may have to be reconstructed.