Nationwide EV Charging Platform in Japan (56,000+ Chargers)

How We Built Japan's Gamified EV Charging App — and Why the Client Came Back a Third Time

Three projects. One client. A platform now covering 56,000 chargers across Japan.

A Japanese client we'd already delivered two projects for came back with a third — this time to build a gamified EV charging locator app that would help drive electric vehicle adoption nationwide. That repeat trust shaped how we approached the work: with the same standards they'd already held us to.

Achieving EV Charging Infrastructure Goals

By the Numbers — 2025

In 2025, the platform reached key milestones that reflect our commitment to delivering tangible results:

• 806 active user accounts

• 56,000 chargers deployed across Japan

• 23,718 charging stations mapped and live

• A platform operating at national scale across Japan's EV infrastructure

Book Tech Consultation

What We Built — and How

We led the product roadmap from the start — mapping out the architecture before a single line of code was written. The core of the app combines real-time EV station mapping, geofencing, and route planning with gamification mechanics designed to keep users engaged beyond their first session.

The Stack

The platform was built for performance and long-term scale:

• Python + Django for backend APIs and system scalability

• PostgreSQL for efficient handling of geolocation and user data

• Flutter for cross-platform, native-quality mobile apps (iOS & Android)

• Custom UI/UX design to maximize usability and adoption

The cross-platform Flutter build meant one codebase for iOS and Android — reducing delivery time and long-term maintenance overhead for the client.

Our Role Beyond the Build

Shipping the app was the beginning, not the end. After launch, we stayed involved across:

• Strategic infrastructure planning to support future scalability

• Backend performance optimization during high-demand scenarios

• Feature enhancements based on insights from early user behavior and client feedback

• Long-term product roadmapping aligned with the client’s nationwide EV rollout objectives

This was our third project with the same client. They didn't need to look elsewhere. See the first project — Custom Order Management System for Restaurants — and the second — IoT-Integrated Golf Simulation Game.

---

The client now has a platform operating at national scale, built by a team that understood their product well enough to contribute to three iterations of it. That's the outcome. That's the standard we work to.

More from This Client Partnership

Project 1 — Custom Order Management System for Restaurants A full-stack OMS built from zero, now serving 1,700+ restaurants across Japan with multi-million yen in annual revenues. Read the case study →

Project 2 — IoT-Integrated Golf Simulation Game A 2D/3D golf simulator using Unity, Objective-C, and Kotlin — with real IoT hardware integration for motion tracking. Read the case study →