In the event that you use a VPS for online and offline applications, you could come across a situation where they don't function adequately because of insufficient physical memory. This could occur if you try to run an app which requires additional RAM than the amount your package provides, or in case you have too many applications and some of them consume all of the memory, leaving no free RAM for the others. Even when you get a powerful package deal, this can happen if you add more programs on the hosting server at some point, and since it is possible that you will need just more physical memory, but not higher CPU speeds or more disk space, our company offers a RAM upgrade that you can use without changing your entire plan. That way, you'll be able to pay just for the resources that you really need and you can avoid errors on your websites caused by deficiency of memory and the inability of the VPS to load the apps.