Development of a Cross-Platform Travel Service Mobile Application with API Reengineering and Multilingual Support

The client aims to develop a stable, scalable, and multilingual mobile application that consolidates multiple travel services across different domains. Previous attempts failed due to poorly designed APIs and inconsistent code quality, leading to delays and increased costs. The client requires a unified, cross-platform solution that integrates multiple web services, supports future scalability, and enhances user engagement through optimized UI/UX and targeted notifications.

A mid-sized travel service provider operating in multiple international markets, offering booking and travel-related content through digital platforms.

• Create a reliable, cross-platform mobile application supporting both iOS and Android, reducing development time and costs by approximately 30%.
• Reengineer and optimize existing legacy APIs to ensure seamless integration with new mobile interfaces and enable future scaling.
• Design a multilingual app supporting at least three languages initially, with easy scalability to additional languages.
• Implement features including search with filters, a travel blog, and customizable push notifications to increase user engagement.
• Ensure high standards of code quality, UI/UX consistency aligned with brand guidelines, and support for future app expansion.

• Multilingual support with initial languages: English, Polish, Russian, and scalable for additional languages.
• Integrated search functionality with filters by categories, keywords, and tags.
• Content modules including travel blog and promotional information.
• UI/UX components adhering to branding guidelines, with sticky elements to enhance CTA effectiveness.
• User engagement tools such as manual push notifications segmented by user groups via Firebase or similar services.
• API layer capable of supporting multiple domain-specific web services with a well-documented, scalable design.
• Legacy API review, debugging, and rewriting to current mobile API standards for robustness and scalability.

• Travel booking and accommodation APIs (e.g., Booking.com, Rentalcars.com, etc.)
• Content management or content delivery APIs for travel blog
• Notification services such as Firebase Cloud Messaging

• Support for both iOS and Android with minimum code duplication
• App performance optimized for quick load times and responsive interactions
• Secure API communication adhering to industry standards
• Scalable architecture supporting future feature additions and increased user loads
• API reengineering to facilitate easy future integration with additional web services

The new mobile application is expected to reduce development time and costs by approximately 30%, improve app stability and scalability, enhance user engagement via targeted notifications, and support future growth through scalable API design. These improvements aim to increase user retention, expand market reach across multiple territories, and strengthen overall brand presence in the digital travel marketplace.