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Transforming travel experience through self-guided tours.

Travel marketplace platform 

Travel markeplace platform development case study

About the project

Illustrail is a map-based travel marketplace platform. It offers self-guided tours for travelers,  culture vultures, foodies and those who want to rediscover familiar places through engaging and interactive city quests. Users can also create their own custom quests or tours, both private or public and monetize them.

Product features

Data moderation

To prevent the creation of restricted content, the platform allows admins to monitor created content and mark it appropriately.


Users receive notifications when they reach certain locations or when they open a new hint.


As the application contains lots of media data it is very important to manage it wisely so that it doesn’t use all of the available hardware resources. App uses custom logic for caching data effectively.

Quests features

Each user can search for quests created by others or create his own one. Each quest is highly customisable.

Users can create an unlimited number of branches for their quest, add steps, create loops and customize the visualization of their branch.

Travel marketplace platform branching view


UI / UX Design

Product Management

Software Engineering

Quality Assurance


  • Client side: Flutter, BLoC

  • Testing: Fastlane, Testflight

  • Cloud: GCP

  • 3rd party: Google maps API, Algolia

Product Team

1 full-time flutter engineer

1 designer (hourly)

1 delivery partner (hourly)

1 QA engineer

Travel marketplace quest setup view

The process

Design concept

At this stage our UI/UX designer turned the product idea into wireframes, based on which a modern design for the app was created.

Release to the stores

Inception and prototyping

The client came to us with an idea of building a travel marketplace. We started with analyzing potential users, project objectives, solution feasibility, and defined the key features and requirements. After agreeing on priorities we got down to wireframing and created a product roadmap.


Flutter engineer started coding the app according to design documents and outlined project requirements. The team worked in short sprints with weekly DEMOs with the client, where we showed the development progress and defined major features of the project. A QA engineer joined the team after the first deployment, testing the app for bugs and issues.

The fully functional app was released to Google play market and App store within 6 months of development. After the deployment, we continue to maintain the application and improve it with more functionality.

They were very professional and detail-oriented. Working on the product they covered aspects I haven’t even thought about. You can give them the task and be sure that it will be delivered in the best possible manner. They exceeded my expectations most substantially with showing ownership of the project; it felt very much like working with a great team, not just someone contracted to do a job.

Co-Founder, Cambridge Technical

clutch review
Travel marketplace platform UI on mobile screens

The solution architecture

Travel marketplace platform solution architecture scheme

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