Alternatives to Bitrix24
Bitrix24 These options were selected to replace all or part of Bitrix24’s workflow. Compare their purpose, limitations and free-plan terms: freemium does not mean entirely free.
Free and open source

Twenty · twenty.com
Modern open-source CRM, a Salesforce and HubSpot alternative, to track customers and deals.
Keep in mind: Cloud version is paid
FreemiumOpen source
Freemium

HubSpot · hubspot.com
CRM to manage your contacts, sales and marketing.
Keep in mind: Free plan now capped (2 users, 1,000 contacts)
Freemium
Freshsales · freshworks.com
Freshworks' CRM to track leads, deals and customer conversations.
Keep in mind: Free plan limited to 3 users
FreemiumAIMobile app
Paid or pricing to confirm

Salesforce · salesforce.com
The world's most used CRM to manage customers, sales, marketing and support.
Keep in mind: Very expensive
PaidAIFrench