The term "CRM" is both ubiquitous and fuzzy. It stands for Customer Relationship Management, meaning software that helps your business track your customer data, customer activity and engagement with your business, and their behavior related to your products or services.
Aspects of many CRMs includes email lists, contact information, call logs, social media post tracking, tracking leads and sales pipeline activity, and even some aspects of project management.
Because CRMs often serve as the core hub of a business's workflow, Left Hook Digital is deeply expert at both using and integration many different CRMs, including Zoho CRM, Hatchbuck, Pipedrive, Salesforce, Kindful, Clio, Streak, ConnectWise, Hubspot, and many many many more. (See the apps we know, love, and integration expertly.)
In addition, our friends at Zapier have written an excellent primer on CRM to help you choose the right CRM for your business.