Travel Booking App: Multi-Region Sync
See how InApps modernized Pegas Touristik's travel app, syncing bookings across Turkey, Russia, Thailand, and Vietnam into one experience.

Travel Booking App
Pegas Touristik runs a travel ecosystem covering excursions, tours, flights, drivers, and local real estate services for travelers across Turkey, Russia, Thailand, and Vietnam. The company needed a mobile app development partner who could unify four separate regional systems into one consistent booking experience.
InApps consulted on and built the mobile app from architecture through data synchronization, integrating four regional systems while modernizing Pegas' legacy infrastructure and keeping booking workflows stable for travelers worldwide.
Project goals
- Build a mobile app for booking tours, excursions, flights, drivers, and local real estate services
- Synchronize data across four different systems spanning Turkey, Russia, Thailand, and Vietnam
- Integrate the new mobile experience with Pegas' complex existing systems and APIs
- Modernize legacy infrastructure without disrupting live booking workflows
- Support continuous feature expansion as requirements evolved
Client requirements
Across each key area, these requirements shaped every architectural and product decision we made.
Multi-Region Data Synchronization
Pegas needed its mobile app to stay in sync with four separate regional systems spanning different markets and time zones.
- System synchronization across Turkey, Russia, Thailand, and Vietnam
- Time zone aware booking logic
- Centralized booking data across regions
- Consistent data across all four systems
Comprehensive Travel Booking Features
The app needed to support a wide range of travel services beyond simple tour booking
- Booking excursions
- Booking tour services
- Viewing flight information
- Booking drivers and local real estate services
Legacy System Integration
Pegas needed the new mobile experience to work seamlessly with complex, pre-existing backend systems and APIs.
- Integration with Pegas' existing systems and APIs
- PHP Laravel backend alignment
- Backward compatibility with legacy infrastructure
- Stable booking workflows during migration
Flexibility for Evolving Requirements
Pegas needed a development partner comfortable with adapting to frequent changes from the original plan.
- Support for frequent requirement changes
- Agile, iterative delivery process
- Continuous feature expansion post-launch
- Close, ongoing client collaboration
Business challenges
The core obstacles that shaped every decision we made in rebuilding this platform.
Coordinating Across Time Zones
With systems spanning Turkey, Russia, Thailand, and Vietnam, time zone differences made coordination and data synchronization significantly more complex than a single-region build.
Frequent Changes to the Original Plan
The project saw many modifications compared to the original plan, requiring the team to stay flexible without losing delivery momentum.
Integration Into Complex Existing Systems
Connecting the new mobile app to Pegas' complex existing systems and APIs across four regions required careful, methodical integration work.
Maintaining Stability During Modernization
Modernizing legacy infrastructure while keeping booking workflows live and stable for global travelers added pressure to every release.
Our solutions
Each solution addresses a specific pain point while contributing to a unified, future-proof platform, from infrastructure to mobile to AI, every layer rebuilt with scale, security, and speed in mind.
Cross-Region Data Synchronization
InApps designed and implemented data synchronization across Pegas' four regional systems in Turkey, Russia, Thailand, and Vietnam, unifying them behind a single mobile booking experience.
Agile, Change-Ready Development Process
The team adapted to frequent requirement changes throughout the project, using Postman for API testing and Figma for rapid design iteration to keep delivery moving despite scope changes.
Deep API Integration With Legacy Systems
InApps successfully integrated the new mobile app with Pegas' complex existing systems and APIs, built on a PHP Laravel backend.
Modern Mobile Experience Built in React Native
The team delivered stable booking modules for tours, flights, and services, improving the user experience with modern mobile flows built in React Native.
Technology stack
Leveraging high-expertise engineering and battle-tested technologies, the InApps team delivered a scalable, production-ready solution built for long-term growth.
React Native
PHP, Laravel
Firebase
Figma, Postman
The experts behind it
Every successful delivery starts with the right people. InApps assembled a dedicated, cross-functional team structured for speed, accountability, and long-term partnership.
Project Manager
Owns delivery timeline, stakeholder communication, and coordination across all 4 regional systems.
Solution Architect
Designed the cross-region data synchronization layer.
Mobile Engineers
Rebuilt the booking experience for tours, flights, and services.
Backend / Integration Engineers
Connected Pegas's existing systems and APIs across 4 countries.
QA Engineer
Validates booking continuity during live synchronization rollouts.
What we delivered
Key outcomes
- Delivered stable booking modules for tours, flights, and services
- Improved user experience with modern mobile flows built in React Native
- Successfully integrated with Pegas' complex existing systems and APIs across four regions
- Enabled continuous feature expansion despite frequent requirement changes
- Synchronized data across four regional systems in Turkey, Russia, Thailand, and Vietnam
Four regional systems, one synchronized data layer, and not a single live booking was disrupted during the transition.
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