Tethering apps are helpful if you don’t want to pay for a tethering plan from your carrier or if your phone doesn’t support tethering out of the box. This Android tethering app is also said to be the fastest tethering option for Android, and it doesn’t require you to root your phone. However, only the full version works without interruptions; the free app disconnects you occasionally. See step-by-step instructions for using PdaNet+ if you need help. This tethering app for Android is open source. If you like it and want to support the developers, buy the inexpensive paid version as a form of a donation and get more features like WEP encryption (but keep in mind that WEP isn’t a secure protocol). Barnacle Wifi Tether works with Windows 7, Vista, and XP, as well as Mac, Linux, iOS mobile devices, and Xbox. This app works with Windows, Mac, and Linux, and can also tether your gaming system. The lite version works just fine but it won’t let you access secure sites that have HTTPS at the beginning of the URL. To have that functionality, you have to pay for EasyTether Pro.