MFi, or Made For iDevices, is Apple's licensing program for hardware and software specific to their iDevices. MFi certified equipment like the Scanfob® 3002i use a particular Bluetooth connection mode called IAP. IAP is similar to SPP on Android, which allows a peripheral device to connect to a virtual COM port. This capability enables software developers to interface peripherals directly with their apps so that data can be transmitted faster and more reliably. Simulated COM ports also allow applications to transmit special characters and other information that you would not be able to send using HID (keyboard emulation). All Serialio apps for iOS are MFi compatible.