How to Send International Messages for Free?

Heywire sends message using GSM and no internet connection is required for receiving the message. International texting is free which makes it extremely useful for those who travel extensively from one location to other. Usually when messages are sent through a service provider, roaming charges are levied on the user. However, Heywire would free you from any of the roaming charges. Heywire is a cross platform messenger that supports almost all iOS based and Android based devices. It can also be integrated with Facebook chat and Google talk. Heywire is capable of working over 3G and Wi-Fi networks too.