Simzy
December 1, 2025

- React
- React router
- Tanstack Query
- Tailwind CSS
- Strapi CMS
- Stripe
Simzy is a service that helps people stay connected internationally by offering eSIM mobile data plans that work without a physical SIM card. It makes it easy for travelers, remote workers, and global users to get data in many countries instantly, with simple activation and flexible plans that you manage from your phone.
Website
The website was built using React and React Router for navigation. It uses Tanstack Query to fetch data from the Strapi CMS, which serves as a headless CMS for managing content. The styling is done with Tailwind CSS, providing a responsive and modern design. The website features a catalog of plans that users can browse and filter based on their needs.
The website features search functionality that allows users to quickly find plans based on their destination or specific requirements. The search is implemented using React state and filters the displayed plans in real-time as the user types.
Plans are being fetched from the backend service using Tanstack Query, which provides efficient data fetching and caching. This allows for a smooth user experience when browsing through the available plans.
The website also integrates Zustand for state management, which helps in managing the global state of the application, such as user authentication status and selected plans
Payments and User Dashboard
Users can view detailed information about each plan, including coverage, pricing, and features. The website also includes a checkout process that integrates with Stripe for secure payments.
User can manage their plans and account settings through a user dashboard, which allows them to view their active plans, usage, and billing information. The website is designed to be user-friendly and accessible, ensuring a seamless experience for all users.

Technologies
- React: A React framework for building static and dynamic websites.
- Strapi CMS Headless CMS
- Tanstack query used for query data from Strapi CMS and plans data from backend service
- Zustand for state management
- Tailwind CSS: A utility-first CSS framework for building custom designs.
- Stripe: A payment processing platform for online businesses.
- Github version control platform