CallGlobal is similar to iCall with its registration process. After it sets up your account and number, you may make CallGlobal to CallGlobal calls, VoIP calls and direct calls. CallGlobal to CallGlobal calls are free, while all other calls cost a certain rate per minute.

iCall is another voip app that can be downloaded from the App Store. It allows you to link to your Facebook account. After the main start-up screen and accepting the user agreement, iCall will prompt you to select an account type. It offers a variety of accounts including a trial, free-use and paid use. iCall will then place a verification call and your account will be ready to go.

Fring is another popular mobile VoIP client and it allows you to integrate other popular social outlets such as Skype, ICQ, Twitter and AIM. Fring provides an excellent way to keep most of your social networking and instant messaging all bundled in one app. You can make free calls to any other VoIP, Fring or Skype user. Fring offers a special version for visually impaired users as well.