Is there a message limit when texting another SudoApp user? Meg - TeamSudo February 18, 2018 02:20 Updated Follow No! Sudo-to-Sudo messaging is free and unlimited in our select destinations. Sending and receiving messages outside of these select destinations is not currently supported. Related articles Why do I need to create a password and backup my device? Will my Sudo phone number ever expire? What does SudoApp cost to use? How do I delete a message I sent to another SudoApp user? What are SudoApp Security Keys? Comments 0 comments Article is closed for comments.