Custom Travel App Development for Guest Experiences and Operations
Updated
Clients of NeoSOFT
Travel & Hospitality Development Solutions
Travel Management Apps
Key Highlights:
- Booking and reservation platforms
- Passenger travel and departure management
- Crew scheduling and flight operations
- Loyalty and reward program integration
- eCommerce and travel intermediary platforms
Airline Operations Management
Key Highlights:
- Connected and efficient fleet management systems
- Front and back-office automation
- Centralized data control and insights
- Improved aircraft utilization and reduced delays
Restaurant & Hotel Systems
Key Highlights:
- POS and food delivery management
- Room and table reservations
- Loyalty, membership, and marketing programs
- Multi-channel order and payment integration
- Employee scheduling and payroll systems
Payment Engineering
Key Highlights:
- Secure and compliant payment integration
- Flexible and multi-currency payment options
- Automated billing and global transaction management
- Reduced processing time for guests and partners
Key Highlights:
- Booking and reservation platforms
- Passenger travel and departure management
- Crew scheduling and flight operations
- Loyalty and reward program integration
- eCommerce and travel intermediary platforms
Key Highlights:
- Connected and efficient fleet management systems
- Front and back-office automation
- Centralized data control and insights
- Improved aircraft utilization and reduced delays
Key Highlights:
- POS and food delivery management
- Room and table reservations
- Loyalty, membership, and marketing programs
- Multi-channel order and payment integration
- Employee scheduling and payroll systems
Key Highlights:
- Secure and compliant payment integration
- Flexible and multi-currency payment options
- Automated billing and global transaction management
- Reduced processing time for guests and partners
Custom AI Solutions Designed For Measurable Business Outcomes
Selected Project Examples
Digital Airline Ticket Booking Platform Built for the UK’s Leading Airline with 100+ Years of Service
Delivering friction-free, omni-channel booking experiences while modernizing a legacy airline operation
(NeoSOFT project)
Unified Travel Booking Platform Built for a Leading Online and Offline Travel Agency in India
Enabling effortless flight, hotel, and bus bookings through a secure, intuitive digital experience
(NeoSOFT project)
What clients say on Clutch
“Their work has improved the quality of our software, reduced bugs, and helped us maintain positive performance trends across our platform.”
Clutch review, December 13, 2025
“Sthenos Technologies' strong design sense and understanding of UX stood out.”
Clutch review, October 23, 2025
“We were particularly impressed by their technical expertise, professionalism, and the quality of their work.”
Clutch review, December 8, 2025
“Report generation that once took hours now happens in minutes.”
Clutch review, December 1, 2025
“Their work has noticeably improved the performance and reliability of our systems.”
Clutch review, December 13, 2025
Custom travel app development for booking platforms, itinerary apps and the digital tools travel agencies and enterprises run on. This page names the systems a travel business actually runs, the rules that reach a booking and a payment, how the build runs, what moves the cost, and what to ask any firm bidding for the work, including us.
Depending on the seniority and mix of the team. Where the scope is clear we quote a fixed price for a defined outcome.
A first production release typically lands in three to six months.
Sthenos holds no PCI DSS attestation, SOC 2 report or ISO 27001 certificate of its own.
From the first commit, with no licence back to us.
On this page
- What we build as a travel app development company
- The rules a booking and a payment have to answer to
- How a travel app build runs
- Custom app development or a packaged booking product, compared
- App development cost: what moves the number
- What to ask before you hire app developers
- What you receive
- Case studies, delivered by NeoSOFT
- Frequently asked questions
- Related pages
What we build as a travel app development company
The four service lines above, each in one line. Together they cover the traveller's side of a trip, the airline's operation behind it, the hotel and restaurant estate, and the payment that ties them together.
Booking, check-in, crew scheduling and customer management for airlines, airports and travel operators.
Fleet management, scheduling and back-office data brought into one operational view.
Reservations, POS, memberships, inventory, employee scheduling and payroll for hospitality brands.
Multiple global payment gateways, multi-currency options and automated billing, built to be secure and compliant.
Two terms carry most of this work, and both are defined on this site: the internet booking engine, the software that lets travelers search availability, choose what they want and pay for it directly online, and the passenger name record, the booking record that holds a traveler's full itinerary and details in one place. For an airline or a large operator this is enterprise app development: the booking engine, the operation behind it and the back office all have to agree about the same trip.
The rules a booking and a payment have to answer to
Figure 1. A booking from search to operation, and where each rule attaches
Every box is a system this page names. The dashed line is the PCI DSS scope, which in the council's words reaches entities that store, process or transmit cardholder data. Each badge names the rule that attaches to the system above it, as the sections below set out; none is a Sthenos credential.
14 CFR 382.43, accessible airline websites
Who issues it, and whom it binds. The US Department of Transportation, at 14 CFR 382.43. It reaches “a U.S. or foreign air carrier that operates at least one aircraft having a designed seating capacity of more than 60 passengers”, and the rule itself says “Only Web sites that market air transportation to the general public in the United States must be accessible to individuals with disabilities.”
What it asks of the build. The rule's own words: “Your primary Web site must conform to all Success Criteria and all Conformance Requirements from the World Wide Web Consortium (W3C) Recommendation 11 December 2008, Web site Content Accessibility Guidelines (WCAG) 2.0 for Level AA”. For a booking engine that means search, seat selection and payment, not only the marketing pages. The later WCAG 2.2, a W3C Recommendation published on 12 December 2024, is set out on our ecommerce page.
PCI DSS, for the payment engineering line
Who issues it, and whom it binds. The PCI Security Standards Council, whose stated audience is “Entities that store, process, or transmit cardholder data (CHD) and/or sensitive authentication data (SAD)”, together with entities that could affect the security of the cardholder data environment. Whether a given merchant has to validate, and how, is decided by the acquirer or payment brand rather than by the council.
What it asks of the build. The payment engineering card above promises secure and compliant payment integration across multiple global payment gateways. Where the card form comes from decides which Self-Assessment Questionnaire a design implies; our ecommerce page sets out the three questionnaires side by side.
GDPR, when a traveller is in the EU
Who issues it, and whom it binds. The European Parliament and Council, in Regulation (EU) 2016/679. Article 3(2): “This Regulation applies to the processing of personal data of data subjects who are in the Union by a controller or processor not established in the Union, where the processing activities are related to: (a) the offering of goods or services, irrespective of whether a payment of the data subject is required, to such data subjects in the Union”.
What it asks of the build. A booking platform serving travellers across the globe, as the travel management card describes, is inside that sentence the moment it sells to someone in the EU. The passenger record and the loyalty and membership data are where that personal data lives.
IATA NDC, offers and orders
Who issues it, and whom it binds. The International Air Transport Association, which describes NDC as “a data exchange format based on Offer and Order management processes for airlines”. IATA says it is available on a voluntary and open basis, so whether a build needs it depends on the airlines and sellers it connects to.
What it asks of the build. Booking and reservation platforms and travel intermediary platforms are both on the travel management card, and whether they speak NDC to the airlines they sell is a question to settle in discovery.
How a travel app build runs
The four steps below condense the stages published on our custom software development page. We work in two week sprints, so working software arrives every two weeks and a first production release typically lands in three to six months, as published on our about page.
- DiscoveryThe problem, the constraints and the success criteria are mapped before a line of code. It ends with a written scope and a costed roadmap, which is the point at which a fixed price becomes possible.
- Architecture and designThe data model, where state lives, how the system fails, how it scales, and how a reviewer will later verify its security posture.
- Build and releaseTwo week sprints that end in something reviewable, then hardening, testing and a controlled release with the rollback path decided before the deployment.
- Handover and supportThe repository and the cloud accounts in your name, then monitoring, maintenance and a roadmap tied to business outcomes.
Custom app development or a packaged booking product, compared
Requests that arrive as a need for custom app development have three honest answers, and only one of them is a build. Our custom software development page sets out all three; these are the two ends.
Buy a packaged product
When- The process is the same one your competitors run
- The product covers it without heavy configuration
- The licence cost is proportionate to the people who will use it
Build a custom app
When- The process is genuinely how you compete
- Data residency or a control framework rules out the hosted option
- The integration surface is so specific no product will cover it
The test that settles most of these is not technical: write down the process you are automating and ask whether a competitor could copy it and be at parity with you. If yes, buy or configure. If no, that process is the reason to build.
App development cost: what moves the number
Our rates are $150 to $250 per hour, depending on the seniority and mix of the team, and a typical project runs $50,000 to $200,000. Where the scope is clear we quote a fixed price for a defined outcome, with a costed roadmap before any build starts.
- How many systems it has to talk to. The cards above name multiple global payment gateways, fleet management, scheduling and back-office systems, and POS. Every integration adds a counterparty whose availability, data quality and release calendar you do not control.
- The control framework the contract names. A PCI DSS scope or a WCAG conformance target carries evidence, review and documentation the same build would not otherwise need.
- How settled the scope is. A settled scope can be quoted as a fixed price; an unsettled one priced as though it were settled is where the buffer comes from.
- The seniority and mix of the team. This is the stated reason our own rate band has a range at all.
- What happens after launch. A quote that stops at go-live is not cheaper, it is shorter.
What to ask before you hire app developers
Every one of these is already published on this site, so you can put all of them to us as easily as to anybody else. If what you need is engineers inside your own team rather than a delivered system, our team augmentation page covers app developers for hire, including the iOS, Android, Kotlin and Flutter engineers it lists.
- Ask what they have integrated with, by name and version. Experience with a platform and a completed integration against it are different claims.
- Ask which certifications are audited and which are self declared, then ask for the report date.
- Ask which PCI DSS questionnaire the checkout design implies, and who decided it.
- Ask for named engineers on the contract, and a notice clause if they change.
- Ask what happens when the estimate is wrong.
- Ask what they would not build.
What you receive
- The repository and the cloud accounts, in your name from the first commit, with no licence back to us.
- A written scope and a costed roadmap, before any build starts.
- Working software every two weeks, not a status report about software.
- Architecture and a security posture you can put in front of a reviewer.
- Infrastructure your own engineers can run once we hand it over.
- Monitoring, maintenance and a roadmap after launch, priced up front.
Case studies, delivered by NeoSOFT
The two case studies in the carousel above were delivered by NeoSOFT: the digital airline ticket booking platform built for a UK airline, delivering omni-channel booking experiences while modernizing a legacy airline operation, and the unified travel booking platform built for an online and offline travel agency in India, enabling flight, hotel and bus bookings through a secure digital experience.
Frequently asked questions
What is an internet booking engine?
An internet booking engine, or IBE, is the software that lets travelers search availability, choose what they want, and pay for it directly online, whether that is a flight, a hotel room, or an event ticket. An IBE is the customer facing booking tool; a global distribution system is the wholesale network it often connects to.
What is a passenger name record?
A passenger name record, or PNR, is the booking record that holds a traveler's full itinerary and details in one place. The airline, the agent and the booking site all point to the same PNR, identified by the short alphanumeric code on the confirmation.
Does an airline website have to meet WCAG?
Under 14 CFR 382.43, a US or foreign air carrier operating at least one aircraft with a designed seating capacity of more than 60 passengers must make the primary website that markets air transportation to the general public in the United States conform to WCAG 2.0 Level AA.
Does PCI DSS apply to a travel booking app?
It applies to entities that store, process or transmit cardholder data or sensitive authentication data, and to those that could affect the security of the cardholder data environment. Whether you have to validate, and how, is decided by your acquirer or payment brand.
What does travel app development cost?
Our rates are $150 to $250 per hour, depending on the seniority and mix of the team, and a typical project runs $50,000 to $200,000. Where the scope is clear we quote a fixed price for a defined outcome, with a costed roadmap before any build starts.
Does Sthenos hold a PCI DSS attestation?
No. Sthenos holds no PCI DSS attestation, SOC 2 report or ISO 27001 certificate of its own, and does not describe itself as certified against any of them. Formal certifications and audits are the institution's to hold.
Related pages
- Ecommerce and retail, where PCI DSS, its questionnaires and WCAG 2.2 are set out in full.
- Mobile app development and web app development.
- MVP development services, for the narrowest version of a product that can be put in front of real users.
- Logistics and supply chain, for the transport side of an operation.
- What is an internet booking engine? and what is a passenger name record?
Book an app development consultation. We are happy to answer any questions you may have and help you determine which of our services best fit your needs. Talk to our engineers.
Platforms We Work With
We work across cloud, enterprise platforms, and digital technologies—helping organizations deliver secure, scalable, and future-ready solutions.
