Community prediction league
Every match is bigger
when you predict with friends.
A prediction pool for your office, crew or club.
No spreadsheets, no chaos.
🟢 Free for up to 20 participants · No credit card
How it works
From launching the league to crowning the winner in 4 steps.
1. Create a league
For your company, crew or club. Pick a sport and a tournament.
2. Invite colleagues
Share a link or QR. They join with one click.
3. Predict matches
Place your prediction before kickoff. Notifications remind you.
4. Watch the standings
Real-time table. The best predictor wins.
Who is trefa.app for
From the office to the fan club — wherever there are friends and sport.
HR and People teams
looking for a way to energise the company culture
Team managers
planning a team-building event around the Hockey World Championship, EURO or the Olympics
Sports clubs
and fan groups running internal prediction pools
Corporate event organisers
around the Euros, the World Cup and the Olympics
Supported competitions
Hockey, football and international tournaments. Plus whatever you ask for.
Missing a league? Message us on Facebook and we'll add it. →
Launch your prediction league
in 2 minutes.
No spreadsheets, no credit cards, no fluff.
Signing in with Google takes 10 seconds.
🟢 Free for up to 20 participants · No credit card