Free phone verification with Burner App

Hello, I know phone verification is something people on the forums run into allot. I know the Burner App works for phone verification, but it costs $2 for each number and only lasts 15 days. I was wondering if you could get free numbers using Jailbreak. I know that some apps process their payments through their servers (like clash of clans) so the jailbreak to get free IAP doesn't work for those types of apps. I don't have jailbreak, so can someone who has their phone jail broken test out to see if you can get free numbers from Burner? Thanks!