Death Timer is a free lifestyle application developed by Sean T. Chang for Android devices. It is a unique and thought-provoking app that calculates an estimate of when you will die based on your lifestyle choices.

The app has a simple and user-friendly interface. It asks you a series of questions about your age, gender, height, weight, smoking habits, and exercise routine. After answering these questions, the app calculates an estimated time of your death and displays it in years, months, days, hours, minutes, and seconds. The app also gives you an option to share your result on social media platforms or save it for future reference.

Overall, Death Timer is an interesting and engaging app that encourages users to think about their lifestyle choices and the impact it has on their life expectancy. However, it is important to remember that the app's results are based on statistical data and should not be taken as a definitive prediction of your lifespan.