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Serhii Kholin

CEO at Onix

Serhii, a CEO with 12+ years' product development experience, aligns tech with business needs, leading daily operations and implementing new services.

More from Serhii Kholin


Booking apps

Hotel Booking APIs

Mar 25,2026

11 min read

862 views

Hotel Booking APIs in 2026: Wholesalers, Channel Managers & GDSs

Hotel booking APIs: explore wholesalers, channel managers, and GDS integrations, key differences, benefits, and how to choose the right solution.

author

Serhii Kholin

Travel agency software

hotel property management system

Mar 23,2026

11 min read

1052 views

What Is a Hotel Property Management System and Which PMS Products Matter Most?

Compare hotel PMS products and features, integrations, and selection criteria — plus a practical checklist to choose the right system.

author

Serhii Kholin

Travel agency software

travel aggregator development

Mar 10,2026

15 min read

848 views

10 Steps to Build an Expedia-Like Travel Booking Website

Discover how to build a travel aggregator website like Expedia, including key steps, features, and strategies for creating a successful travel platform.

author

Serhii Kholin

Booking apps

hotel booking app development

Mar 09,2026

9 min read

856 views

Boost Your Bookings: Hacks for Developing a Hotel Booking App

Learn what a hotel management system is, explore core features, and see how it streamlines operations, efficiency, and improves guest experience.

author

Serhii Kholin

main banner

Mar 07,2026

21 min read

504 views

Legacy System Modernization for Hotels & Hospitality Businesses: Proven Strategies

Explore legacy system modernization strategies in the travel industry, including upgrading legacy systems in hospitality to boost performance and security.

author

Serhii Kholin

Travel agency software

Leveraging Technology for Enhanced Company Culture and Guest Experience in the Hospitality Industry

Mar 05,2026

16 min read

725 views

The Tech Advantage: Trends Reshaping Hospitality and Guest Engagement

Transform your hospitality business with cutting-edge technology! Explore how leveraging tech enhances company culture and elevates guest experiences.

author

Serhii Kholin

Tourism App Dev

niche travel websites

Mar 04,2026

10 min read

1254 views

Niche Travel Platforms: The Secret to Engaged and Loyal Users

Learn how niche travel platforms boost revenue with personalization, trust, and community-driven growth — plus ideas for building profitable travel products.

author

Serhii Kholin

Tourism App Dev

car rental app development

Mar 03,2026

17 min read

601 views

The Onix Full Guide to Car Rental App Development

Dive into the future of mobility. Explore cutting-edge technology, innovative trends, and strategic insights for crafting a seamless, user-centric car rental app.

author

Serhii Kholin

Travel agency software

hotel management system features

Mar 02,2026

16 min read

897 views

Hotel Management System: Features, Benefits, and Use Cases

Learn what a hotel management system is, explore core features, and see how it streamlines operations, efficiency, and improves guest experience.

author

Serhii Kholin

Travel agency software

payment gateway for travel website

Mar 02,2026

15 min read

751 views

Payment Gateway for a Travel Website: Expert Insights and Strategies

Discover the essential factors for choosing the perfect payment gateway for a travel website. From security and accepted payment methods to user experience and scalability, make informed decisions for seamless transactions.

author

Serhii Kholin

Tourism App Dev

AI-driven Travel Shopping

Mar 02,2026

14 min read

802 views

How to Build a Wizz Shop&Fly-Like Solution

Explore how Wizz Air's Shop&Fly platform uses AI to personalize the travel shopping experience. Learn how to build a similar AI-driven solution for your business.

author

Serhii Kholin

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Case Studies

Design portfolio

Blog


Travel
  • How to Build a Travel Mobile App: Features, Tech, and Costs
  • Travel APIs: Types, Benefits, Best APIs &How to Choose
  • How to Choose a Payment Gateway for Travel Businesses?
  • Why and How to Build an Automated Travel System in 2025
  • Travel Fraud Prevention: Protect Your Business
  • A Travel Business's Guide to Seamless Migration

Healthcare
  • Healthcare CRM Development: Key Features & Cost
  • AR & VR in Medical Training: Use Cases & Implementation
  • MVP in Healthcare: How to Execute, Costs, and Major Milestones
  • How to Develop a Telemedicine App: Tips, Features & Costs
  • CRM Insurance Software Features
  • Why and How to Achieve Interoperability in Healthcare IT

AI Development
  • How AI is Transforming CRM – And What It Means for You
  • Hand Tracking and Gesture Recognition Using AI
  • Biases in Artificial Intelligence: How to Detect Bias in AI Models
  • Deepfake Threats: How to Protect Your Business?
  • AI Agents: Examples, Use Cases, and Development Basics