On the next revision of the app, please could you consider adding the standing charge and VAT to the weekly, monthly and yearly total (Electricity and Gas) usage figures.
I can see the benefit of excluding these additions on the daily figures in order to be better informed on 'actual' usage rate charges, but in respect of budgeting costs and the pound in your pocket, the actual amount one has to pay would in my view be far more useful for the extended time periods.
Alternatively, you could consider having a drop down option to choose including or excluding the additional charges mentioned above.
Thanks.