On-premise CRM is run on computers within the premises of an organization. In this case all the data and information is stored inside the premises of the company, too. Cloud-based CRM software implies that the software and all relevant data, is accessible through the Internet and is displayed in a web browser. According to Gartner, by 2018, large organizations in mature markets will shorten the CRM replacement cycle by two years by moving to Software-as-a-Service model. Nowadays, everything is going into a cloud, and we would recommend not to stand against this. Heroku and Amazon Web Services are proving to have really good system administration and hosting capabilities. Heroku is a bit pricey, but once you subscribe, you can forget about server maintenance at all. Amazon AWS, namely S3 service, will ensure that all your data can be accessible worldwide and with download lightning speed, no matter how many people are calling your CRM server at the same time. Not every company needs to have both applications. However, the combination allows large companies to mix the vital data from each system and get a comprehensive business outlook.