Overview

As eSIM adoption grows across the travel and connectivity industry, businesses such as travel-tech companies, telecom providers and digital connectivity platforms need reliable web and mobile solutions to deliver these services to their customers. Our client had a similar requirement and approached Vrinsoft to develop a complete eSIM platform, including a responsive website and native Android and iOS applications that supported services across 200+ countries.

Through this project, Vrinsoft gained hands-on experience in building a connected eSIM product that brought together plan purchasing, activation, service management and international customer requirements across web and mobile. This experience gives us a strong foundation to develop similar solutions for travel businesses, telecom companies and platforms looking to add digital connectivity services or build new products as the industry continues to develop.

Project Highlights

 Developed a complete digital presence for the client's eSIM business across a responsive website and native Android and iOS applications.
Built the platform to support eSIM plans and connectivity services across more than 200 countries, addressing the needs of an international travel audience.
Created a connected purchase journey that took users from selecting a destination and data plan through payment, installation and activation.
Incorporated multiple activation methods, including QR code and manual installation, to support different devices and user requirements.
Added multi-currency payments and multi-language capabilities to help the client serve customers across international markets.
Developed real-time data usage tracking and top-up functionality so users could manage their active plans after purchase.
Created account and order management capabilities that allowed customers to access purchases, review plan details and manage their eSIM services.
Integrated customer support access across the website and mobile applications to assist users throughout the purchase and activation journey.
 

Goals

 Build the client's eSIM business into a fully functional digital product rather than limiting the service to a basic website or standalone mobile application.
Develop web and mobile experiences that could work together throughout the full customer journey, from purchasing a plan to managing the service after activation.
Handle the complexity of connecting a customer-facing platform with the external services required to deliver eSIM connectivity.
Create a development foundation that could accommodate different markets, customer requirements and service models as the business expanded.
Build the project with enough flexibility to support future additions beyond the initial web and mobile platform.
 

Strategy

 Started by mapping the complete user journey before developing the website and mobile applications.
Structured the development around the dependencies between eSIM providers, payments, activation and account management.
Planned the web and mobile applications around shared business requirements while addressing platform-specific needs separately.
Built and tested each stage of the customer journey to identify issues before moving to the next stage of development.
Considered different device compatibility and activation scenarios during the implementation process.
Prepared the platform to accommodate additional services and customer access points as the client's business requirements developed.
 

Outcomes

 Delivered a complete eSIM platform across web, Android and iOS for the client's international connectivity business.
Supported the client's ability to serve travelers across 200+ countries through a single digital product.
Created a connected customer journey covering plan purchase, activation and ongoing service management.
Helped establish a digital foundation that the client could continue building on as its service expanded.
The successful delivery led to continued work with the client on a POS system for airports, railway stations, and shopping malls.
 

Our Client

Our client operates in the global eSIM and travel connectivity space, helping international travelers stay connected while visiting different countries. As they planned to expand their digital offering, they needed a web and mobile platform that could bring their eSIM services together and provide travelers with a convenient way to manage connectivity throughout their trips.

Client Requirement

Develop a website and mobile applications for the client's eSIM service.
Create a straightforward purchase and activation journey for international travelers.
Connect the platform with the required eSIM services to support activation and plan management.
Support international transactions with multiple currencies and payment options.
Build a platform that could support ongoing plan management as well as future additions to the client's digital and physical customer channels.

Proposed Solution

Vrinsoft developed the platform with a shared backend supporting the responsive web application and native Android and iOS apps. Core services managed user accounts, plan availability, purchases and eSIM provisioning across all three applications.

Third-party eSIM APIs handled plan retrieval and provisioning across 200+ countries. The system coordinated payment confirmation, eSIM delivery, activation and plan management, with QR code and manual installation paths. Data usage and top-ups supported the full lifecycle of an active eSIM.

For a business building a similar product, this type of architecture provides a base for connecting multiple external providers, customer applications and service workflows without rebuilding the entire platform as requirements change. It can also support future additions such as new connectivity providers, payment methods, markets or physical sales channels, which became relevant as the client later expanded the project with a POS system for travel locations.

Why We Chose This Solution?

To deliver a reliable web and mobile platform, we selected technologies that could support the project’s functionality across different platforms while handling the requirements of an international eSIM service. The combination of PHP, MySQL, Kotlin and Swift provided a suitable foundation for the website and native mobile applications.

The backend was developed with PHP to support core platform functionality and third-party service integrations.
User accounts, purchases, eSIM plans and related platform data were managed through MySQL.
The Android application used Kotlin to support native mobile capabilities and eSIM-related requirements.
Native iOS development with Swift provided the application with platform-specific functionality for Apple devices.

Benefit of This Solution

The solution gave the client a connected digital foundation for running its eSIM service across web and mobile channels. By bringing plan purchases, activation and ongoing service management into one platform, the client could offer customers a more consistent experience throughout their journey.

The platform also supported the client’s growth across international markets and created room for additional destinations, services and customer segments. Its underlying structure allowed the business to extend the service beyond the original website and mobile apps, supporting future integrations and new customer access points as requirements expanded.

Key Features

Global eSIM Coverage

The platform connected with eSIM services covering more than 200 countries, giving users access to plans for different destinations through the website and mobile applications.

eSIM Activation

A guided activation process allowed users to install their purchased eSIM and start using their selected plan after purchase.

Flexible Plans

The platform supported local, regional and global plans, giving travelers options based on their destination and connectivity requirements.

Multiple Payment Gateways

Multiple payment options were integrated to support international purchases across different currencies and user markets.

Data Usage Tracking

Users could check their data consumption through the platform and purchase additional data when required.

QR Code Activation

QR code-based activation was added to simplify eSIM installation and reduce the steps required to get a purchased plan running.

Multi-language Support

The website and mobile applications included multiple language options to support users across different international markets.

User-Friendly Interface

The interface was designed across web and mobile to keep the main user journey clear, from selecting a plan through purchase and activation.

Order History and Management

Users could access previous purchases, review transaction details and manage their eSIM plans from their accounts.

Customer Support Integration

Customer support functionality was included within the website and mobile applications, giving users a direct way to request assistance with their eSIM services.

The Result

The client successfully launched the eSIM platform across its website and Android and iOS applications, giving international travelers access to eSIM plans across 200+ countries. The platform received positive feedback for its purchase and activation experience, helping the client serve customers across international travel markets. Following the success of the project, the client continued working with Vrinsoft on the development of a POS system for physical locations such as airports, railway stations and shopping malls, extending the eSIM service beyond digital channels and into high-traffic travel locations.

eSIM Solutions for Travelers