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The voice does not use data, it is the map tiles it is downloading. Depends how many you need as to how much you use. And if you try it on satelite view (which is very good as long as you have a good data connection) then it really starts eating up the data.I have used around 10hrs of google navigation complete with voice and it ate around 25ish megs of my 150meg limit so its alright
Google Nav needs either wifi or mobile data, because it does not store maps and downloads them over the air when needed.
The two apps I mentioned in my previous post, Sygic and Copilot, are both "proper" sat nav apps. By that I mean that they include all of the maps for the area you have paid for (e.g UK, or Europe, or USA) and store those maps on your SD card with the software. They therefore do not need wifi or mobile data, and just need GPS to know where you are on the map. The only exception is that if you want to use their live traffic update facility (Sygic's is not yet working) then you will need mobile data for that.
Is there anyway to get them for free?

no i wasn't talking about warez is there a trial demo something like that?Not if you want to remain a member here, no. Android Forums doesn't condone software piracy.![]()
Trouble with that is that is that it is just like Google Nav in that it relies upon getting maps and augmented views over the air, so uses wifi or mobile data, which is not what the OP wants.and while you are ;ooling around try augsatnav you'll find it on the market for free
I've been using copilot on my 2.2 hero (FroydVillain 1.5.0) with no problems whatsoever. Well worth the money IMO, even taking into account that google nav is free, because i have come unstuck with no data connectivity in the middle of nowhere before.OMG I can't even use CoPilot on my Android 2.2
(with the exception of Google Nav)Is there anyway to get them for free?

There is a dedicated Archos forum on Android Forums - so guess it would be best to ask the question there. The second post down of this thread suggests that there was some sort of mapping software available. Whether that was sat nav or not is not stated.Do any of these work well (or at all) with a GPS Android tablet like the Archos 5 (WiFi only, no 3G)?
--Dave