Hi, Unfortunately I have no solutions to offer but I just wanted to add a comment that I'm facing the same issue with my application. I'm not using itms-services URL at all and am certainly not intentionally trying to install another app. I have a previous version approved on Testflight but can't get my latest version approved due to this issue. When I replied to the App Review, I received the same reply of 'no further information can be provided' so I don't really know what else I am to do. It's a really frustrating experience to have your app rejected and then when you try to resolve the issue, getting told "we can't tell you where you did this, but we definitely saw it somewhere".