With the Usage Calculator you have all your meters in one view and you will not have any surprise with the next bill of your provider. The application suits best for all your household meters like, electrical power, water or gas. Functions: - Meters for different use cases (electrical power, gas, water …) - Reverse counter (i.e. for heating oil tanks) - Overview about the usage per month and trends - Different charts to visualize the usage - Reading reminder - Torch light function - Automatic b