Cash app not opening Iphonecan ruin your whole day if you don’t follow the right troubleshooting method in the first place. So, the question is – what is the right method to fix Cash App not working on iPhone? Make sure your Cash App payment app is updated, there is no virus or bug in your phone, and ensure you are not violating the terms of use of Cash App. If you have tried everything but found no solutions, then consider getting in touch with a Cash App representative.