To empower Dutch households with detailed energy consumption insights, we developed the Slimme Meter Lezer (Smart Meter Reader) app for Android and iOS. As the first app to combine both gas and electricity data from standard smart meters in one simple overview displayed in euros, it transformed complex usage data into actionable savings opportunities. As Design Lead in this startup environment, I oversaw the entire product lifecycle, from UI design to customer support, creating the Netherlands' first comprehensive household energy monitoring solution.