I use to play some games with classmates in free-time between classrooms and we use a free online leaderboard app
https://trackscore.online where we keep track of our score and results but the tool doesn't give us the hand to edit the leaderboard columns in order to add some extra detail and metric that should be tracked during the game!
However, I mostly enjoy using it and it serves almost all our need for the matter and it's free ^^