Short verdict
Choose Agile CRM when budget matters most and you want bundled CRM plus basic automation at a lower entry price. Choose Keap when the business is willing to pay more for a stronger bundled follow-up and nurture story.
Pricing considerations
Agile CRM is easier to access at a lower price point. Keap is much more expensive up front, so the buyer needs a real automation and nurture case rather than a vague desire to get more from one system.
Ease of use comparison
Neither is as light as a simple sales CRM, but Keap is the more coherent bundled product if the workflow fit is strong. Agile CRM needs more careful trialling because lower price does not remove usability trade-offs.
Implementation and migration comparison
Both require more implementation thought than lighter CRMs because bundled automation changes the rollout complexity. Keap is heavier but often more intentional. Agile CRM is cheaper, though the team should test workflow quality carefully before importing too much.
UK small business suitability
Agile CRM suits budget-aware UK teams wanting bundled functionality. Keap suits UK SMBs that are more serious about bundled follow-up, nurture and sales process automation.