What is the minimium iOS version supported by Ring4 on iPhone? Alex November 03, 2020 16:50 As of Nov 2020, the minimum version of iOS supported to run Ring4 is iOS 13. Related articles What's the difference between Ring4 and Ring4 Business? I logged in to my Ring4 account but cannot find my number, why? How do I sign up or login? What is the difference between Ring4 and a Softphone? Do the Ring4 calls use my carrier plans minutes? Comments 0 comments Please sign in to leave a comment.