WiFinder [iPhone] full review
Point of fact, WiFinder will show you all the networks in range of your device, open or not. It’s very good at that. But the app will only let you connect to open networks—most of the time.
Here’s how the app’s simple interface works. When you launch WiFinder, the app automatically scans for any nearby wireless networks. The app will display what it finds with a red or green icon next to the network name, indicating whether it is open or closed. You can tap the network name to get more information, such as Media Access Control (MAC) address, channel, signal strength, and authentication type.
If it’s an open network, you can then tap the Connect button and, in most cases, connect to the network. I discovered it often isn’t as easy as that, however. Some “open” networks still want you to register or sign in somehow, as I discovered an area bookstore. (And, incidentally, the Connect button also appears when you tap a password-protected network. The button is disabled.) When I could connect, however, I connected quickly and efficiently.