SuiteCRM: It is regular open-source CRM software, free to use and customize. In order to use this platform, there are some prerequisites like web server, database on your system, compatible PHP version, hosting, etc.
Suite: OnDemand - Suite OnDemand comes with its own cloud-based hosting solution. It is also open-source, which means, you can use its license for free, however, you will need to for the hosting service. It has three packages- Starter, Business, and Premium. For using this platform you don’t need anything except a system and an internet connection.
Learn which version is a perfect fit for your business: https://store.outrightcrm.com/blog/suitecrm-cloud-services-with-suite-on-demand/