Does it work for both Prepaid & Postpaid SIMs? True Balance Customer Support June 07, 2017 11:58 Updated Follow Not yet, currently we only support Prepaid SIMs. But soon we are going to add Postpaid too. Related articles What is Earning task? I couldn’t get a refund Does it support dual SIMs? I don't want to see monkey anymore How to use True Balance? Comments 0 comments Please sign in to leave a comment.