A free app for Android, by Open Vehicles Ltd.
You can monitor the state of charge (SOC), door/trunk/hood status, tire pressures and temperatures (TPMS), core system temperatures (PEM, motor, and ESS/battery), and display your car's live GPS location on the map.
The Open Vehicle Monitoring System is a free, low-cost, and open-source software module that can be installed in an electric car to provide remote monitoring. It works over the Internet and requires a smartphone or tablet to be connected to the car. The module can be used to monitor the state of charge (SOC), door/trunk/hood status, tire pressures and temperatures (TPMS), core system temperatures (PEM, motor, and ESS/battery), and display your car's live GPS location on the map.