Thankfully, there are many proven solutions for poor iPhone signal strength. Here are nine of the best ways to get more bars ...

But all those fancy phone features and apps require a data connection, which is included in your domestic phone plan but typically costs extra through roaming ... that turns cell signals into ...

Of course, if you're using apps that gobble up data while traveling in a foreign country, there's always a risk of racking up hefty roaming ... most phones. Without it, you couldn't get cell ...