Concrete Hub is a smart mobile app designed to offer a beautifully categorized collection of the latest construction industry updates, useful concrete tools (such as concrete calculator, mix design), smart cement and concrete dictionary and encyclopedia, concrete standards and guidelines, and educational materials on concrete, blog posts, and videos for Civil Engineering professionals, academics, researchers, and students.
It's free of charge to get the installation package of Concrete Hub, also, you can take a look at users' reviews on Droid Informer. The app works fine on Android 4.1 and higher. It's safe to download this application. Giatec Scientific Inc. is the official developer of the tool which can be found in the Educational category.
The latest update was on Jul 4, 2016 and Concrete Hub was downloaded and installed by over 5K users. On Google Play, the app is rated 4.3 by its users.