I got Navfree for my iphone which is free for UK and Ireland and it works just fine - although like nearly all SatNavs (even very expensive ones) when using my own postcode it goes to my back garden which is at the top of a narrow street with no access to my house instead of up the next street and along the short cul de sac to the front of the house. I frequently have difficulties with delivery vans not being able to find us, despite the house being here for 25 years!!!!!