In order to provide force update feature, I need a version check in my code. I was thinking to use Itunes search api, I can use it to compare two versions and provide a force upgrade option on version mismatch. Was just a bit skeptical though before going on with this approach, I have heard apple might reject submissions if Itunes search api is used. I could not find exact thread which suggest the case, hence thought of asking it here. Kindly help. Thanks in advance.