APP used to control Bella PCR device by BLE, it can measure 4 color assay, such as FAM, HEX, ROX and CY5, APP communicate with Bella device by BLE and control LEDs and photodiodes, APP do temperature cycle from 60C to 95C and isothermal with constant temperature. It tests assay on PCR chip and record real time data and display the result and saves test result each time on your iPhone, this APP is running in iPhone