tcomp

An SMS hub is a stand-alone system which allows you to send and receive large numbers of text messages via the mobile phone network, without needing to be connected to the internet or to any other computer network.

Send and receive large amounts of SMS messages from your computer.

Who's it for: FrontlineSMS has been specifically designed for use by NGOs and doesn't require an internet connection.

The mobile phone applications discussed here, such as FrontlineSMS, run 'locally' on a computer, and can be accessed without using the internet or any other computer network. 

Conduct surveys on your phone

Episurveyor

Collect data on your mobile phone and send it back to a laptop or other computer.