Daddel is a Progressive Web App (PWA) to organize game nights with your friends. The app solves the problem of finding a date with a large number of people.

Daddel enables users to post dates for video or board games. Others can join these "lobbies" by specifying the time at which a person is available then. This way a calendar is created that displays if and when enough players are interested in playing this game.


  • runs in the web browser, Android and iOS (as PWA)
  • simple registration/login via email or Google account
  • realtime updates of all data thanks to Firebase Firestore
  • push notifications when a new match is created (not supported in iOS)
  • sharing of matches through perma­links and native share dialogue
  • filter for games

Used technologies

  • TypeScript
  • CSS
  • React
  • MUI
  • Firebase (for authentication, realtime database, push notifications and Cloud Functions)
Daddel Screenshot 1
Users are able to sign in with mail and password or through Google (OAuth 2.0).
Daddel Screenshot 2
New players can register through their Google account or with shown form if they know the app invitation code.
Daddel Screenshot 3
All upcoming matches are listed as cards in the main view of the app. Each card shows the date, a calendar and the number of free slots in the lobby (progress bar with traffic light colors).
Daddel Screenshot 4
Users can join a game by clicking the Mitspielen button to specify the time at which she is available.
Daddel Screenshot 5
The card will then update accordingly.
Daddel Screenshot 6
In addition to the upcoming matches, past games are displayed in an extra tab. Both views can be filtered by game.
Daddel Screenshot 7
Each card has a detail view with a permalink. The URL can easily be copied in to the user's clipboard with a button.
Daddel Screenshot 8
New matches can be created in the second main view of the app.
Daddel Screenshot 9
Own games can be edited and deleted. All players can also copy the permalink of a game or share it using their device's native dialog.
Daddel Screenshot 10
In the settings, players can set their nickname and manage push notifications. When a match is created they will receive a notification if activated. Lastly, users can log out or delete their account here.