Infusionsoft is an all-in-one marketing automation platform that aims to handle every stage of your marketing and sales, from lead acquisition to eventual conversion.
In terms of features, Infusionsoft is clearly lacking when compared against Salesforce. You don't get the in-depth segmentation, social media automation, 1:1 journey builder, etc.
However, Infusionsoft does boast a built-in CRM, a rock solid automation builder, and impressive e-commerce capabilities. It's not nearly as powerful as Salesforce, but it is well-integrated and much easier to learn.
More importantly, Infusionsoft is also considerably cheaper than Salesforce. For an equivalent plan with Marketing Cloud, you'll likely have to pay 2-4x more annually. This makes Infusionsoft one of our recommended Salesforce alternatives...Full Infusionsoft Review