If you have a smartphone, then you can use the True Energy app without any problems.
Do keep it mind that we only support a limited number of operating systems.
We continuously try to optimise our app to match the newest operating system versions to give you the best user experience possible.
We recommend the following operating systems as a minimum:
iOS (iPhone)
11 and up
Android
6 and up
We recommend that you always use automatic update of you apps. You can read more and see how you do it here.