Chơi Hụi is a free finance app designed for tracking, saving, and calculating profit and loss from hụi (a traditional Vietnamese savings circle). The app features an introduction to hụi and instructions on how to use the app. To use the app, simply enter the number of hụi, start date, regular opening date, hụi price, commission, and commission payment period. Then click on the "Create Hụi" button to track and save the data.

You can save the hụi for future reference by clicking on the "Save" button. If you have only one hụi, the app will automatically save the data every time you exit the app. To calculate profit and loss, enter the price and interest rate and click on the "Calculate" button. The app will calculate the total amount saved, total amount won, total amount saved, and the actual profit/loss. The app also calculates the hụi interest rate, actual hụi interest rate, and other related data. The app contains ads, but clicking on them helps support the development of new apps.