OPEN'ER FESTIVAL: Mobile application and festival management system

  • mobile app
  • development
  • Product consulting
  • UX design
  • ux strategy
  • product discovery
  • product building
  • design sprint

Imagine a flat, vast area. You build a town on it to check tens of thousands of people into it for a few days. You need to provide them with everything they need to live. From Chemical Brothers to cold beer. From David Podsiadlo to an ambulance. From Taco Hemingway to our mobile app. This is not SimCity. This is Open'er Festival!


Huge area with several music, theater and fashion stages. Tent field, showers and changing rooms. Cinema, museum and discussion club. Beer bars, wein bars, other bars. Extensive parking, exits and entrances. And over a hundred thousand people hungry for good fun. How to take care of their efficient logistics? How to check the admission tickets? How to check the vaccination certificates?

OPEN'ER FESTIVAL: Mobile application and festival management system


We have created advanced IT tools that make life easier for both sides of the festival world.

Open'er Festival organizers can efficiently manage their guests. The system allows to verify access rights to the festival area and its individual zones. It collects information from various ticketing systems, updates in real time information about changes in personal details on personal tickets, compares exit and entrance data. It also fully automates health intelligence related to COVID-19.

Festival guests use our system via mobile application. It makes it easier for them to complete the formalities at the entry gates, facilitates navigation through the vast area, and allows them to plan the use of the extensive program of musical and many additional attractions. If the number of places at any of the events is limited, our app also comes in handy with booking assistance.

OPEN'ER FESTIVAL: Mobile application and festival management system

QR codes

When in 2021, due to the coronavirus pandemic, sanitary restrictions were imposed on mass event organisers, it became a condition of participation in Open'er Festival to fill in a health questionnaire. We have fully automated this task. Before entering the festival area, each guest had to answer questions about their health in the application. If they did not show any symptoms of COVID-19, they received a QR code in the application. Apart from the medical data, it contained information about the validity of the ticket and access rights to particular zones. Our system managed a collection of tens of thousands of such codes in real time. It generated new ones for arriving guests, deleted invalid ones, and with the progress of the program - changed the scope of authorizations of those already issued.

OPEN'ER FESTIVAL: Mobile application and festival management system

Ticket hub


Our digital hub downloaded ticket databases issued by various ticket sellers, updated data in real time in case of return or change of personalities. The software also automatically detected suspicious or abnormal situations to eliminate fraud attempts and tighten the ticketing system.


The biggest challenge was to create a system that would efficiently serve tens of thousands of people. Before the most important concerts we rightly expected huge streams of visitors, when several or even tens of thousands of people wanted to enter the festival grounds at the same time. Imagine what would happen if our system failed? But nothing like that happened! It worked quickly and reliably, automated many processes, made life easier for both staff and visitors.

And what if someone forgot the phone or lost it? When creating the system we anticipated many non-standard situations and immediately built solutions for them. We also predicted that not everyone would want to enter the festival area honestly. So the system catches abuses, protects against using one QR code by several people and even creates a black list of fraudsters.

OPEN'ER FESTIVAL: Mobile application and festival management system

Course of work

We started our work from conducting a product discovery workshop with AlterArt, the organizer of Open'er Festival, during which:

  • we analyzed current user paths,
  • we designed a new purchase flow and registration, related to the need to fill in covidium surveys,
  • we identified design risks,
  • we identified points of failure in the user's path, e.g. failure to fill in the questionnaire, physical absence of the phone, ticket return in case of illness, etc.
  • we identified misuse, e.g., theft of a ticket, passing the QR code to another person, passing the phone, etc.


The next stages of work included:

  • UX mockup design for the ticket hab,
  • UI design,
  • programming and implementation in the store,
  • integration with external providers of ticketing systems and scanners
  • support during the event.
OPEN'ER FESTIVAL: Mobile application and festival management system


  • Strategic analysis - searching for solutions
  • Lo-fi UX mockups
  • Hi-fi UX mockups
  • Project management
  • Mobile application implementation
  • Backend

TWIN digital collective studio was responsible for UI.

OPEN'ER FESTIVAL: Mobile application and festival management system


OPEN'ER FESTIVAL: Mobile application and festival management system

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