I love nav4all for the its voice instruction. the voice is perfect is very clear. When you are speeding a subtle warning sounds ('Pay attention'). Basically you don’t even need the instructions on the screen anymore. It is handy though to see how much meters are left till the next instruction. Besides that, you can use Nav4All perfectly with the GPS receiver placed on your dashboard and your phone in the pocket of your jacket.
and now u can down it for free from http://www.nav4all.com. u should try it.
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