Stool Log Lite is a free iPhone app developed by digitalsirup GmbH. This lifestyle app falls under the Health & Fitness category and provides a convenient way to track and log your bowel movements. With the help of the Bristol Stool Scale, you can easily classify your stool and the app will generate interesting statistics for you.

The app offers two modes of logging. In the simple mode, you can log the start time (automatically set on start), end time (also set automatically), and the stool type according to the Bristol Stool Scale. In the detailed mode, you have the option to log additional details such as color, consistency, weight/volume, and your feeling.

Stool Log Lite also allows you to add notes to your current session in both modes. One of the highlights of this app is that your data belongs to you and is not collected or transmitted. You have the ability to export your data as a CSV file, ensuring your privacy.

Please note that Stool Log Lite is the free version and only allows a limited number of bowel movements to be logged. For a more comprehensive experience, consider upgrading to the full version.