It is called Gi Bodyguard.
From pains you are having and where they are, to your medications, what you've eaten, your exercise regiment and even what your bowel movements are like. Yes poop is a gross topic but it can say a lot about your health. The trouble with stomach problems is they are often complicated. Stress, medications and the variety of foods we eat can all play a role so it can be hard to narrow down what the problem is. This app allows you to track everything to identify patterns which may lead you in the right direction to managing your bowels better.
You can even print off reports of everything you have tracks.
The best part it that it is free and available for both apple users and android.
If you want to learn more about this app, check this out.