The "premium" has WiFi so if you connect it to an access point (say at home) you can download and try Sygic. I have been using that on another Android unit and my phone and it performs pretty decent. Not cripleware or annoying adds; just an occasional question to upgrade to the paid version. App is free and the maps are from OSM so free also
PS. iGO is a paid app so providing a download link would be illegal (at least in my country)
Give it a try