HubSpot is a platform, that offers HubSpot CRM Free, Marketing Hub and Sales Hub options. HubSpot CRM is a freemium cloud CRM service announced in September 2014 during Inbound Conference. According to vendor's web page, core CRM features are available in a CRM Free plan. However, to get a variety of marketing and sales features will cost from $50/month to $2400/month or more (depending on the number of users). If you are looking for a free HubSpot CRM alternative, available both in cloud and on-premise, with a wide range of features including built-in telephony, quotes, invoices, sales reports and advanced features besides CRM like social intranet, HR system, project management system, with open source code access on top of that, Bitrix24 makes a good choice.
* Please note that the information may have changed since the publication. For current prices and features please visit Bitrix24 pricing page.