Someone fronts the court fee and then has to chase three people on WhatsApp. The app handles that: it records who paid, splits it and sends the reminders.
When setting up the match you can mark the court as paid, set the price and pick who fronts it.
The app divides the amount between the players and tells each one how much they owe whoever paid.
When someone pays their share, they mark it in the app. Whoever fronted the money gets a notice to confirm it.
In Payment tracking you see who has paid and how much you've still to recover. No phone lists, no napkin maths.
If someone forgets, the app sends a reminder at 24 and 48 hours. You don't have to be the one asking twice.
It's free and optional: if your group pays another way, just don't turn it on.