Redefining the EV Charging Experience with Zes
Building the digital backbone of Turkey’s most accessible EV charging network.
For EV drivers, charging isn’t just about replenishing energy — it’s about managing time, trust, and decision-making in motion. As physical access expands, the real question becomes: “How quickly and confidently can a user make the right choice?” With over 1,900 stations across 81 cities, Zes offers extensive reach. Our task was to transform that infrastructure into a seamless and intuitive digital experience. Over the course of 8 months, we set out to understand real user behavior, align it with business objectives, and reframe decision moments throughout the EV journey. Every screen, every interaction, and every word was redesigned to reduce friction and support confident use. The outcome wasn’t just a better mobile app — it was a scalable, sustainable design foundation aligned with the needs of Zes teams and users alike.
Our Dedication to Excellence
Closer Look at Our Highlights
Challenge
Integrating complex EV user needs—station discovery, route planning, real-time tracking—into a single mobile interface, while reconciling engineering, operations, and support workflows.
Solution
Applied a modular design strategy informed by netnographic research and stakeholder input. Lo-fi wireframes accelerated validation; content architecture and UI were systematized through an extensible design system.
Outcome
A production-ready mobile app that reduced ambiguity, enabled scalable implementation, and aligned product, design, and engineering around a unified component-based system.
The Result
What We Achieve
1
Project Key Points
How We Simplified Station Discovery
Find the Nearest Charging Station in Seconds
Find the Nearest Charging Station in Seconds
The new interface enables users to quickly locate compatible stations based on location, availability, speed, and connector type — making discovery seamless across 81 cities.
How We Helped Drivers Plan with Confidence
Effortless Route Planning for EV Journeys
Effortless Route Planning for EV Journeys
The new route planner accounts for battery level, charging needs, and station availability — helping users pre-plan charging stops and reduce range anxiety during long trips.
How We Designed for Real-Time Confidence
Track Charging in Real Time with Full Transparency
Track Charging in Real Time with Full Transparency
Users can now track session progress live — including charging duration, power usage, and estimated cost — all surfaced in a clean, intuitive interface.
How We Empowered Future-Focused Drivers
Reserve Your Spot Before You Arrive
Reserve Your Spot Before You Arrive
With station reservation and remote start features, drivers can now secure a charger in advance and initiate sessions remotely — removing uncertainty in high-demand areas.
Innovation and Adaptability
Visual Process
We know that drivers who want to charge their vehicles on the go and are new to Zes primarily seek a fast and effortless onboarding experience. That’s why we designed the onboarding journey to be as seamless and human-centered as possible.
We designed a map experience that allows users to access stations quickly without distraction, filter them easily, and find exactly the type of station they need. While doing so, we customized everything down to the color tones of the map and followed accessibility standards throughout the design.
We set out to answer the question: What does a truly human-centered charging experience look like?
Instead of designing merely for the customer, we approached the experience holistically—deeply understanding the end user and crafting every touchpoint with their needs in mind.
Design Framework
From Flow Prototypes to Scalable Systems
We didn’t just design an app — we built a process that could scale, adapt, and evolve. Starting with lo-fi wireframes, we rapidly prototyped flows aligned with real user goals. Each piece of interface content was written with intent — ensuring every word supported a decision.
Collaboration with developers was seamless via a shared, always-updated Figma environment.
The process culminated in a reusable, high-fidelity design system — crafted for clarity, speed, and consistency.
The app was recently launched, and we’re now collecting usage data.
But even before metrics, we grounded every design decision in real behavior and usage context. Internal teams now share a common design language, improving handoffs and collaboration.
Our design system lays a solid foundation — making future development faster, smarter, and more sustainable.
Project Gallery
Now or Never
Proven by Numbers
Design - Dev Team
Cross-functional team of designers, developers and strategists collaborated to craft the entire EV charging journey.
18 +
Contributors
Designed Screens
A wide range of mobile screens were designed to support different use cases across onboarding, maps, and payment flows.
100 +
Screens
Interactive Flows
We designed and tested interactive flows covering all critical actions—from locating stations to starting and stopping charging sessions.
12 +
End-to-End Flows
Localized Experience
The interface was adapted for multiple user contexts, including localization for different languages and accessibility needs.
7 +
Language Versions
Please note: These mock-ups are for illustrative purposes only and are not indicative of the
final solution.
Creative Minds
Our Team
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Baran BedirFounder -
Harun Can BiryolProduct Design Lead -
Devran ŞahinProduct Designer -
Aleyna KarabakAssociate Product Designer -
Deniz AkınProject Operations Lead -
Selen ŞentürkManaging Partner -
Reha Atakan CetinUX Research Lead
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