I used to have the older version....and the original adroid apk app.
All I needed to do when upgrading to new phones...yes 3.. and the tab, was to load the apk file and the app automatically downloaded the maps and worked fine.
BUT
not long after the new boating version came out, I could load , download, but something at the google verifying end, after a couple runs, would close it down.
If I stooped the google stuff in the phone from running (means basically got to hack/ get full admin rights (called rooting the phone) and uninstalling (NOT just disable) it would work. Rooting a phone immediately removes ALL warranties and guarantees... and if dont know what u are doing VERY well there is a good chance u will 'brick' the phone. Bricking is turning the phone into a useless often un fixable brick.
Yes I have accidentally bricked on an old obsolete, broken glass phone that was laying around I used to learn and experiment on
So it was far easier simply to down load the google navionics NZ boating app...has a month or so trial period...after seeing if it was worth it for a few days... purchase the maps and the next 12 months updates for about $20.
I can now run the navionic android app on my windows computer thru a emulator, on my smart phone and tab.. but have to use my google log in on each to verify the app each time it is run.