The price of this software is very low, it has all functions that I need to perform my job as an estimator in the field office. It can be used offline without internet connection but if you have any problem with your computer or network then there will no help from support team. If you are looking just like me who needs simple calculations using excel sheets then go ahead otherwise spend more money buying some expensive softwares which provides so much features at high cost rather than spending less amount by purchasing this one. My main purpose was calculating material quantities required for different jobs. This tool saves lot time & efforts when compared to manual estimation method. Also helps us calculate materials requirement per unit area.