On the iPhone, I use MagicJack to get completely free calls over WiFi to US numbers. I'm looking for a similar app to enable me to call UK numbers for free on the iPhone. Does anyone know of one?
To make this question of broader applicability to everyone, what apps also allow free calling to other countries? Any smartphone platform (iPhone, Android, Blackberry, Windows Phone) could be useful.
- I'm talking only about apps that allow completely free calling - the Apple app stores at least are full of apps that allow "cheap" calling.
- Suspicious apps that require credit card numbers upfront, etc., aren't as interesting.