Frame calculator is a safe app that shows the prices of windows and doors ( for now wooden only ). We created a mobile system which is a fast and easy way will value the qualitative products we can supply. Currently, the app is on a BETA version but it will change into better for all your needs. The whole system works online and is connected to the server which is updated automatically. For the app to work properly it has to be connected to the internet. The system itself consumes very little data, while the app is updating make sure you are online. Thank you got your comments and help in developing the project.