陣痛時計 is an easy-to-use app that allows you to measure the intervals between contractions with just a tap of a button.

This app is designed for expectant mothers to determine when to contact the hospital. You no longer need to rely on manually recording the intervals on paper while watching the second hand of a clock. Simply tap "Start" when the pain begins and "Stop" when it subsides, and the app will record the duration and intervals of the contractions.

In case of any mistakes, you can easily delete the records by swiping. You can also delete multiple records at once using the edit button.

To prevent the screen from automatically locking while using the app, you can enable the "Do Not Auto-Lock" feature.

If you wish to save your records, you can export them to a file using the "Export" feature and send them via email or other means. Preserve these precious memories.