A free program for Android, by Pixelsdo Mobile.

This is a very handy app to help you do some calculations for your construction projects. It is useful for calculating how much cement, sand, and aggregate you need for a specific project. It also provides an option to set your own bag size and rate of premix bags. This app is useful for a variety of construction projects. It is especially useful for those who are thinking of building a house or a building. It is very easy to use and it provides the results in an instant. You can use it for calculating how much concrete you need for a specific project.

You can also use it to calculate how many blocks (bricks) you need to build a wall by area. This is useful for those who are planning to build a house or another establishment.