WinDiggy is a free puzzle game app for Android users that allows them to play multiplayer games with a chance to win prizes. The app has a simple sign-up process where users can log in using their phone number and a system-generated password for verification. There are no in-app purchases, and the game is completely free to play.

The game begins with a push notification sent to all users, and a timer is shown on the screen to start the game. The timer is synced from the server to ensure that all players have the same time. Each game has different tasks and chances of winning, and the first person to complete the game becomes the winner. A screenshot of the winner is taken and uploaded to the winners' gallery list in the app drawer. The prize money or gift card is sent through a third-party service provider, and proof of payment/delivery is kept in WinDiggy's records.

It is important to note that WinDiggy reserves the right to disqualify any user before, during, or after the game if they violate the rules. The decision made by WinDiggy is final and cannot be challenged. In case of game cancellation or player disqualification, no prize will be given. Overall, WinDiggy is an enjoyable puzzle game app that provides a chance to win prizes without any in-app purchases.