I'm developing an iOS application that relies on peer-to-peer discovery and connection using Bluetooth. The expected behavior is: Two iOS devices with the application installed. Both users marked as "visible". When within Bluetooth range, the devices should discover each other and establish a connection. However, the problem occurs when: The application is in the background (minimized) OR The device is locked (screen off). In these states: The devices can no longer be detected. The search returns no nearby devices. Connection could not be established. ChatGPT: What you want to do probably runs into a structural limitation of iOS — it's not a bug. And iOS: severely limits background BLE scanning. reduces advertising frequency. may even stop completely depending on the state (lock screen). In other words: 👉 iPhone was not designed to function as a "continuous radar" between background apps. Apps that do something similar (like AirDrop or Find My): use Apple's private or privileged APIs or combine BLE + Wi-Fi + Ultra Broadband. i need help : /