How can I exchange information easily and securely between 2 apps on macOS? 1 of the app will infrequently request a short amount of data from the other one. Here are the options that I can see: DistributedNotificationCenter : very easy to implement. However, the notifications are broadcast to any apps that wants to listen to it, and apple's documentation clearly states that it's not secure. I would ideally like a mechanism that is as simple as this, but with a secure communication between 2 aps Apple Events. I am not sure how to make an app respond to apple event. And I think it would be the same problem : any other app could talk to these 2 apps and get information from them. I ideally want this to be more secure. XPC, this seems overly complex for what I want to do, as my understanding is that this essentially involves creating a third process that will regulate communication. Implementing IPC via sockets. It seems reasonable I think, as I can probably secure the communication better. However it feels over-enigneered to set up sockets that always listen for incoming connections, etc Am I missing a simple mechanism on macOS that could help me in that use case? Or am I looking at things incorrectly for one of these options? Thanks!

I run some tests for an iOS app, connecting the iPhone to my mac where the code resides. I notice that it fills the iPhone from system data, until the iPhone is full. I tried everything to remove the system data (I assume some logs from the XCode testing): reset network, restart the iPhone, remove the tested app, etc. Nothing works. I am stuck with having to erase all data on the iPhone and reinstall from scratch, which is very tedious. Any suggestions ? Thanks!