Good news! The latest version (05.05.04) is now available in the Apps and Google Play stores!!
This version includes:
New redline toolset that enables full-circle workflow, overlaying redlines back on source DGN files.
New Measure Area tool
Line weight thickener
Fixed defects include:
GPS blue dot location improved. (note you will need the latest publisher AND this mobile version – Sorry but the problem was on both the publisher and mobile app sides)
Custom line styles and hatching now work.
See attached readme file for more details.