I'm developing an application (SwiftUI) that needs an alarm, but from what I've read, it's not possible to do it like the iPhone alarm, nor is there a special permission that can do it, so I imagined doing it by sending incessant notifications until the user interacts with the application, something that I also didn't find because they say there is a limit of 64 notifications, but the "Alarmy" application makes these incessant notifications until the user interacts, but in the forums I read nobody knew how they did it, I imagine it could be remotely, but I tested the application without internet and it worked normally, the application sends 2 notifications every 3 seconds, I tested it for more than 5 minutes, which exceeds the limit of 64, so I ask you, how do you imagine they achieved this? A special permission maybe?