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.
The lower charger edge is curved and lifts the lower part of the iPhone. Pushing the iPhone a little upwards, solves the problem. I’ll try to insert something at the lower edge of the charger to permanently solve the problem.