Is there a calling-time limit when calling another SudoApp user? Meg - TeamSudo September 24, 2017 11:35 Updated Follow No! Sudo-to-Sudo calling is free and unlimited to our select destinations. Placing and receiving calls outside of these select destinations is not currently supported. Related articles Is there a calling-time limit when calling a non-SudoApp user? Is there a message limit when texting another SudoApp user? What does SudoApp cost to use? Which devices can I use SudoApp on? Why can't I purchase more credits for calling? Comments 0 comments Article is closed for comments.