You can install our site as a web app on your iOS device by utilizing the Add to Home Screen feature in Safari. Please see this thread for more details on this.
Note: This feature may not be available in some browsers.
Well since we never know the actual kWh state of the battery, then I think its hard to make that assumption. Especially since tesla doesnt let the car access the full 70kWh.
How do you know you uses 33kWh over that 60%?