How to Connect to Spotify Mobile
Most modern smartphones are Wi-Fi enabled, so after you connect to a local network, you can stream Spotify tracks to your phone by using Wi-Fi. You can use Spotify Mobile at home and over Wi-Fi networks in hotels and cafes with no problem — you just have to make sure you’re logged in and connected.
Streaming over Wi-Fi is the most efficient way of using the service, but you can also listen to tracks over high-speed 3G networks, meaning that there’s virtually no limit to where you can access your music. However, if you’re going to be using your phone all day, every day to listen to music, you should sync tracks to your phone over Wi-Fi first for offline listening, and then switch Spotify Mobile to Offline mode when you’re out and about.
You can turn 3G off in your phone’s settings, say if you’re abroad and don’t want to access the Internet in case you amass unwanted data charges. To turn 3G off on the iPhone, tap Settings→General→Network. On the Network screen that appears, next to Enable 3G, slide the switch off.
But when you aren’t within range of a network, using Spotify over 3G is okay now and again if you have a generous data-usage plan — as long as you aren’t overseas, where international roaming costs tend to be on the more extortionate side.