I have created a bug report (FB18172172) We want to exchange data between apps without storing data anywhere. This rules out the possibility of AppGroups. If there is any problem when exchanging data and starting the recipient app, the data should simply be gone and not be stored anywhere. The Share extensions are also ruled out because the user should not see a dialog when the other app is started. In addition, the data should only be exchanged with our apps. The whole thing should also work without the Internet. A server is therefore also out of the question. Data exchange using URL schemes has worked wonderfully in recent years. Only with the new versions has something changed without it being documented or it is a bug. If there is an even better way, please let me know.