Admin dashboard
Real-time availability, automatic booking confirmations, revenue and occupancy reports, and team roles for running the club.
All case studies 
Korner / MVP to cross-platform product
A sports club platform taken from MVP to both app stores
Korner began as a court-booking MVP for soccer fields and grew into a platform that runs sports clubs: a Ruby on Rails backend, an admin dashboard and a Flutter app built, released and published on iOS and Android.
The starting point
Club operations deserved better than calls and spreadsheets
Korner started with a frustration its founder, Yasir Guzman, knew as a regular club player: courts brought people together, but bookings, payments and daily operations ran on disconnected systems, phone calls and manual confirmations.
Club administrators deal with empty hours, last-minute cancellations, poor visibility into revenue and repetitive tasks. Players need a fast way to find and book a court. Both sides had to be served by one connected system.
A focused first version
The first version focused on reserving synthetic soccer fields in Barranquilla, Colombia, including public reservations that help players find others to complete a team. The product then grew into an admin dashboard, player and venue websites, a point of sale, tournaments, classes and reporting.
Starting with one sport and one city kept the MVP small enough to ship, then real club feedback shaped what came next.
One system, every surface
Four connected products on one Rails backend
The backend is a Ruby on Rails application that powers the admin dashboard and the APIs behind the player experience. Clubs manage schedules, prices per field, bookings, payments, inventory, tournaments and reports from one place.
Player mobile app
Players book courts in minutes, join teams, create public reservations to fill a match and follow tournaments.
Player website
The same booking experience on the web for players who prefer not to install the app.
Venue website and point of sale
A personalized club website, online payments, product sales and inventory, synced with bookings and reports.
Korner supports soccer and futsal fields, padel and multi-sport clubs, with schedules, prices, memberships and reports configured per sport or facility.
Cross-platform mobile app
Build, release and publish on both stores
The player app is built with Flutter from a single codebase for iOS and Android. It was taken through the full cycle: build, App Store and Google Play review, publication and ongoing releases.
- 01Build once for iOS and AndroidThe player app is written in Flutter, so one codebase delivers the booking experience on both platforms and new features reach every player at the same time.
- 02Release and publish on both storesThe app went through App Store and Google Play review and has been live on the App Store since January 2024, published by Korner Innovations on Google Play.
- 03Keep releasing after launchVersion 2 shipped in 2026. Later Android releases improved Google sign-in and added Android 16 compatibility, keeping the app current as the platforms change.
The player app
Find a club, fill a match and book a court
Players see nearby clubs with their sports, formats and payment options, pick open time slots with their prices, create events others can join and keep their upcoming games in one schedule. The app is available in English and Spanish.
- 01Find a clubBrowse nearby clubs with their sports, field formats and payment options such as paying on arrival.
- 02Pick the sport and timeChoose what you are playing, move through the week and select one or more open slots with their prices.
- 03Confirm the bookingReview the selected slots and the total, then confirm. The club sees the booking in its dashboard.
Product at a glance
One platform built and owned end to end
A Rails backend, an admin dashboard and a Flutter app for players in English and Spanish, in production since the first release.
- Backend and admin dashboard
- Rails
- One codebase for iOS and Android
- Flutter
- Soccer, padel, squash and volleyball
- 4 sports
- Live on the App Store and Google Play since
- 2024
Product ownership
Launching was the start, not the finish line
Long-term Rails ownership
The same Rails application has carried Korner from its first bookings to version 2. Owning it over years means keeping dependencies, integrations and data models healthy while new features ship on top.
Ongoing app maintenance
Store requirements and operating systems keep moving. Regular releases keep sign-in, compatibility and the booking flow working for players on current devices.
Experience we bring to your MVP
Building and running a product end to end informs how we scope a first version, choose a cross-platform approach and structure a Rails application for the changes that follow.
Build with WideFix
Planning an MVP with a mobile app?
Tell us who the product is for, which platforms you need and the budget you have in mind. We can help define a focused first version, ship the Rails backend and the iOS and Android app, and keep the application maintained after launch.
