Used Sygic for a week long trip to Ireland in October. We drove from Dublin and circled clockwise around the country. The app could not have worked any better. It is super, knew every road and never let us down. Downloaded it on a 4G iPhone (with desktop connection) due to the amount of data. Easy!! Used it in Ireland with data roaming off. I would highly recommend this app. Worth the price.
Dshnanny about Sygic UK & Ireland: GPS Navigation, v12.1