Pregnancy Due Date Calculator is a free Android app developed by Ground Number, designed to help expectant mothers track their pregnancy. The app is simple and elegant, with a user-friendly interface that allows users to calculate their due date based on their last menstrual period. The app also tells users the weeks completed, days left until delivery, current trimester, and future trimester dates.

One of the key features of this app is the ability to store weight in kg or lb every alternate week, starting from Week 0 until Week 40. Users can view a graphical chart of their increasing weight, zoom in, zoom out, and move the graph. The app also allows users to store their feelings every week in the Journal tab and read the journal as simple text. Users can swipe horizontally to switch tabs, and swiping right on the last tab will bring them back to the first tab. All values are stored, so users don't have to enter them again when they open the application later.