A friend has just released a new free Android VFR moving map GPS app that includes all lower 48 Sectionals & AF/D info, full functionality in Airplane Mode (no data access required in use), and several other features. I've volunteered to help him with documentation and seeking aviators to check it out and give us feedback if so inclined.
This free app is named Avare, and it's open-source, ad-free, and requires only two Permissions: GPS of course for the moving map feature; and SD card access so it can store Sectionals for the contiguous U.S. states (lower 48). Avare is here on the gPlay store: https://play.google.com/store/apps/d...d=com.ds.avare
I created this website for Avare and a smaller free app he'd already done: http://apps4av.com/
If you have an Android device and would like to help us test out Avare and decide what features to add next, you're invited. Just launch the Play app and install Avare.
Happy Flying!