Betwext is a simple group text messaging service that allows users to send messages once and have them received by everyone on their active list, with replies also being shared with the entire group. The service is currently in private beta and can be accessed by signing up for an account and sending a message to a designated phone number. To get started, users must create a list of contacts, send a message, and then reply-all type functionality allows all members of the group to see replies from others on the list. Betwext aims to make managing multiple groups easy through simple text commands. The service is part of Twilio's developer ecosystem and offers resources such as APIs, SDKs, and sample apps for developers looking to build their own SMS applications using Twilio's SMS API.