ODK Counter is a free Android application developed by ODK that allows you to keep track of form and question pairs in ODK Collect. With this app, you can easily count the number of times a specific question appears in a form, which is a useful feature for those who work with data collection and analysis.

The interface of ODK Counter is straightforward and easy to use. You can create a new counter by selecting the form and the question you want to track, and the app will automatically count the number of times that question appears in the form. You can also view the history of each counter to keep track of changes over time.