Mobile application
Pop-up Challenge
View on the App StorePop-up Challenge turns Alpine exploration into a game: participants discover destinations, take on challenges and earn points. A dedicated management interface helps organisers build routes and run seasonal competitions.
Project contributors
- Aurélien
- Aymeric Sarrasin
- Several colleagues
- Client
- Pop-up Challenge
- Delivery
- Delivered in 2023
- Development duration
- 1 year
Technologies
React Native
Next.js
Firebase
AWS
The challenge
Connect the discovery of Alpine destinations with challenges on the ground, while giving organisers tools to manage points of interest, validate routes and run competitions.
The solution
Aurélien, Aymeric and several colleagues developed the mobile application and its management interface over one year. A QR code at the destination validates each route; results feed into the database, and a participant ranking supports the distribution of rewards.

Challenges experienced on the ground
The application lets participants choose a destination and activate its challenges. A QR code at the destination connects the physical route with its validation in the application.
Results feed into the database and contribute to participant rankings. This gives organisers a basis for running competitions and assigning rewards.
The organisers’ tools behind the application
A management interface complements the mobile experience, allowing organisers to create challenges and manage points of interest. The project combines React Native, Next.js, Firebase and AWS.
Aurélien, Aymeric and several colleagues worked on the project for one year. Delivered in 2023, the application is available on the App Store and has also been featured in regional media.
Key figures
- users
- 1,000+
- partner venues
- 100+
Source: internal data provided by the client, cumulative since launch.
Pop-up Challenge in the press
The project through the voices of its founders and the people using it outdoors.
The challenge through a participant’s eyes
Le Nouvelliste looks at a participant’s experience and the Pop-up Challenge routes across the Alpine regions.

An outdoor game for winter too
On Rhône FM, the founders introduce the winter edition of Pop-up Challenge and the application that accompanies these outings.
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Audit, scoping and prototype
Together, we clarify the need, users and objectives, then create an initial clickable prototype to define the user journeys and essential features.
Essential features (MVP) and product roadmap
We define the essential features (MVP), then organise V2, V3 and future development around feedback, ambition and budget.
UX/UI and scalable architecture
User journey design, native or cross-platform technology, backend, APIs, database, administration when needed, security and performance: every decision prepares the application to grow without starting over.
iOS and Android development
We develop the iOS and Android application, incorporate your feedback and advise you throughout the project, with clear tracking of progress and hours.
Testing and app store publication
We test and optimise the application, prepare the accounts, product pages and forms, submit it to the App Store and Google Play, then work with you on the feedback and requested changes.
Production launch and future releases
We configure the production launch, hand over access and technical materials, and can then provide maintenance, support and the following phases.
Public launch plan
(Optional)For a public release, we can organise the waiting list, beta, newsletters and launch calendar to bring the first users together—just as we did for Kinn.



