go-e App: Smart Interface for Electric Vehicle Charging
Intuitive mobile app interface designed in Figma, integrating user-centric UX principles and interactive prototyping for seamless electric vehicle charging experiences.
Product Designer & UX Specialist, 2020
Challenge
Early adopters loved go-e’s portable charger, but the web-based interface felt clunky at the kerb. The task: design an iOS + Android app that lets drivers start, stop and schedule a charge in seconds, one-handed
Approach
I mapped the end-to-end charging ritual, then sketched a “one-thumb” interaction. I based my designs on the official iOS (Human Interface Guidelines, HIG) and Android (Material Design) spacing rules, so the app felt native and familiar to users on both platforms. Low-fi wireframes were validated; hi-fi prototypes were built and played back on device for realism. States for Bluetooth pairing, Wi-Fi fallback and offline mode were modelled so firmware and app never disagree.
Prototype & Tech
Sketch symbol library for iOS / Android / iPadOS size classes Principle click-throughs for micro-interaction timing PDF redlines + Zeplin for dev hand-off (tokens for colour, type, radius) App Store / Play-Store marketing frames delivered to brand team
Key Screens
Dashboard · Charge-Schedule · Cost-Graph · Error-State – coming soon.
Outcomes & Next Steps
The design kit became the single reference for firmware, mobile and marketing—ensuring every LED state matched its on-screen counterpart and giving drivers a truly native charging flow. (Screenshots coming soon.)