Daily Fast is a free iPhone app developed by Travis Ma that provides intermittent fasting alerts. The app is designed to be simple and straightforward, without any ads, sign-ups, or surveys. It is specifically built for intermittent fasting and does not support extended fasts of 24 hours or more.

Using Daily Fast is easy. Users can set their fasting schedule and the app will send notifications to remind them when it's time to start or end their fast. The app also provides a fasting timer to keep track of the duration of the fast. The interface is user-friendly, with a clean and minimal design.

Overall, Daily Fast is a useful tool for anyone looking to maintain an intermittent fasting regimen. While it may not be suitable for extended fasts, it provides a simple and effective way to keep track of fasting periods and stay on track with health and fitness goals.