If you use a Virtual Private Server for online and offline apps, you might come across a situation where they don't work properly because of lack of physical memory. This can take place if you try to run a program which requires more RAM than the amount your package deal provides, or if you have too many apps and some of them consume all the memory, leaving no free RAM for the others. Even when you get a powerful plan, this could happen if you add more applications on the web server later on, and since it's possible that you shall need just more physical memory, but not higher CPU speeds or more disk space, our company offers a RAM upgrade which you could use without changing your whole plan. Thus, you may pay only for the system resources that you need and you'll be able to avoid errors on your websites caused by insufficient memory and the inability of the VPS to load the programs.