This app not only tracks your fasting window but also allows you to track, log, and analyze your diet.

With Fastient’s journal feature, Miller likes that “users can keep track of personal factors such as their mood, sleep, and exercise performance.” As she notes, this can help individuals discover how intermittent fasting impacts their overall well-being. “The app also has a feature to calculate ‘calories spent’ during fasting periods,” she adds, cautioning that users should take the accuracy of this number with a grain of salt since this will not be accounting for factors such as exercise that can impact caloric burn.