case study
Seiyon Plus
Driving Mobility Innovation with a Car Subscription Platform
The car rental market was evolving customers wanted flexibility, not long-term commitments. Seiyon Cars Plus, a trusted fleet operator, saw an opportunity to pivot from traditional leasing into a digital subscription model. Partnering with HBOX, they redefined car ownership with SEIYON+, a platform built for a generation that prefers access over assets.
Problem Statement
Seiyon’s legacy operations couldn’t keep up with changing consumer behavior.
- Rigid Leasing Model: Focused on year-long rentals while users wanted month-to-month options.
- Outdated Experience: Bookings relied on in-person visits or emails, losing modern customers.
- Manual Operations: Contracts, payments, and vehicle allocation were handled offline, slowing growth.
Without a digital solution, Seiyon risked losing relevance in a market dominated by subscription-based mobility services.
Our Approach
HBOX Digital built a mobile-first subscription platform that automated the entire journey from browsing to booking, KYC, and payments. The goal: make car access as simple as booking a ride.
Core Strategy
- Simplified pricing through dynamic monthly plans
- Seamless user journey with transparent subscriptions
- Instant digital contracting and renewals
- Secure in-app payments and live vehicle availability
Design Thinking
A mobile-first experience with minimal friction, built to mirror user habits where 80% of bookings start on smartphones.
The Transformation
SEIYON+ turned Seiyon Cars Plus into a digital-first mobility leader within ten months. The app eliminated manual processes, created recurring revenue, and positioned the brand as a regional frontrunner in car-as-a-service (CaaS) innovation.
The Results
- +1800% growth in digital subscription bookings (from 5% to 95%)
- $450,000 monthly recurring revenue within six months
- 35% lower customer acquisition cost through automation
- Booking cycle reduced from 48 hours to under 15 minutes
- 4.7★ Play Store rating for performance and user experience
Tech stack
Technologies
Flutter
Node js
my sql
React
Figma
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