Iokee
Designing a mobile app that makes home energy consumption understandable and actionable, for a real product, from research to live launch.
The problem worth solving
Portugal has ambitious energy efficiency goals for 2030, but most consumers have no visibility into their own consumption. More than 60% of surveyed users had never heard of an energy monitor. The gap between intention and action was a UX problem as much as a technical one.
Data overload
Existing tools buried users in technical jargon and required setups most households couldn't navigate.
Locked behind barriers
Competitors required solar panels, extra sensors, or a specific provider. Iokee had none of these restrictions.
How we got there
From survey data to beta testing, the process was iterative at every stage, always anchored to the same north star: make energy data understandable for someone who's never thought about it.
people surveyed on energy habits and attitudes
The clearest signal: users don't want raw data, they want to know which appliance is costing them money, right now.
Competitive analysis
Analysed Shelly, EDP Re:dy, SolarEdge and others to map the gaps Iokee could own in features and UX.
Full app mapping
Mapped the complete flow, onboarding, dashboard, device screen, wallbox, analyzer, billing, settings, for two hardware products.
Beta testing & refinement
Ongoing interviews with beta testers shaped multiple rounds of iteration. Technical language was progressively simplified based on real comprehension issues found in testing, particularly on the device screen.
Users don't want raw data. They want to know which appliance is costing them money, right now.
What we built
The app covers the full user journey, from onboarding that builds energy literacy, to a home dashboard that surfaces the most actionable data first. The hardest challenge was translating technical hardware into plain language: the solution was progressive disclosure, lead with the everyday answer, let the curious dig deeper.
Analyzer
Historical consumption context, charts that answer "when did I use the most?" without requiring any technical knowledge.
Billing estimates
Cost projections that help users anticipate their bill before it arrives, turning data into a reason to act.
Wallbox
Native EV charging management, integrated without fragmenting the experience for non-EV users.
Built to scale
Created from scratch to serve an ecosystem, adopted across the app and the webapp that followed as the product continued to grow.
Where it goes from here
The app went live while in beta. The next phase is gathering post-launch data, retention, activation rates, and where users drop off, to drive the next design iteration. The webapp was in early development as the project evolved beyond this phase; extending the design system to web is the natural next step for reaching a broader audience.
As solar adoption in Portugal grows 6.5%+ per year, expanding the app's solar and wallbox features will become increasingly central to the product's value.
A touch-screen kiosk for a live brand activation, turning concert-goers into brand leads through music, personalisation, and a printed keepsake.