Bracket HQ Bracket Maker - Apps on Google Play

Challenge Place - Best tournament manager ever, real-time, free.

OfficePoolStop's Bracket Maker

GitHub - eugene-f02/Tournament-Bracket-Generator

Futsal Tournament Maker Cloud::Appstore for Android

Tournament Bracket Generator App

Organize an event

Go Tournament Maker – Microsoft Apps

Basketball Bracket Maker

GitHub - Teefmummy/tournament-maker: An App which allows you to organize tournaments

I made madnessbracket.fm — a website where you can generate a tournament bracket with your favorite songs : r/Python