HubSpot is primarily a marketing automation platform focused on inbound marketing strategies. It offers various tools such as email marketing, social media marketing, landing pages, and lead tracking to help marketers generate leads and convert them into customers. On the other hand, Infusionsoft is a comprehensive CRM platform that includes marketing automation features along with a robust customer database, sales pipeline management, and e-commerce functionality. Its primary focus is on managing customer interactions throughout the sales cycle, from lead generation to post-sale customer support. Overall, while both platforms offer some similar features, their core focus and strengths are different. HubSpot is a better choice for businesses that want to focus specifically on inbound marketing strategies, while Infusionsoft is better suited for those looking for a comprehensive CRM solution to manage their customer data and sales activities.