A tire pressure monitoring system (TPMS) app specially designed for the iOS platform, using iOS mobile devices and tire pressure receivers to easily monitor the pressure and temperature of 4 tires. When there is an abnormal situation such as a tire leak, the tire pressure receiver and the iOS mobile device can alarm in time to remind the driver to stop and check the tire in time; while driving, the tire pressure and temperature can also be checked at any time through the APP interface to keep the tire at the correct pressure to ensure that Drive Safely.