This was a project done with Sprechen, Aura gas' old calculator was a simple PHP form with some jquery to swap out the plans. Being presented with all the options at once may be overwhelming for a user and is quite an outdated way of presenting UI. Therefore, they requested an animated, step based calculator to make for a more modern, mobile orientated experience. The new calculator would need to incorperate discount codes, custom emails and should log all subscriptions succesfully put through the system. Aura gas had already been using Go Cardless as their vessle for taking payments so we decided to stick with it and avoid having to get rid of any old infastructure.