Green 19 is an Android-based app developed by Green19 Solutions inc. that replaces the traditional cardboard scorecard and serves as the ultimate golf tournament companion. The app allows golfers to keep track of the tournament in real-time, record scores and immediately view the tournament ranking. With an aerial view of the current hole, golfers can adjust their strategy by identifying any obstacles. The GPS function helps players find the distance between the team and the green, while the radar equipped with augmented reality identifies the green even when it's hidden by obstacles.

Green 19 not only benefits the players but also event sponsors, who can add their logos to the app and present them to users at the right time. The spectator mode allows volunteers to use the app, too, to check rankings or take photos. Organizers can also use the Green 19 management platform to send messages to participants. At the end of the day, a leaderboard is available in the tournament management system to present the rankings along with any photos taken by participants.