depend on what you're looking for, each app has their own advantages and diadvantages....ovi map is great with data but still not as good if you need REAL navigation....took a wrong turn while using ovi map once and it was damn near impossible to ovi to reroute...too a lot of restraining to not toss my phone out the freeway....

Sygic had some minor issues for me but after some modding, it works great now....it completes my phone....