Free SMS Gateway is an Android application that allows users to send free SMSes over the internet. The app is developed by Prog-NET and is available for free. Users can send free SMSes to almost all countries, especially to Polish mobile networks, without the need for registration.

The main functionalities of the app include sending free SMSes to all over the world, a history of sent messages, forwarding messages, and an auto-save feature for the sender's name and the last used receiver phone number. The app is easy to use and has a simple user interface.

The app promises to add more functionalities in the next versions. If users have any ideas or problems, they can send an email to the developer. Overall, Free SMS Gateway is a useful tool for anyone who wants to send free SMSes to their contacts.