Recommended Radium CRM is the business component to Gmail. It's a light, quick system to wipe out your tedious tasks and help you stay on top of your relationships. This is the CRM made for Gmail integration. It focuses on helping with boring data entry by auto-filling the correct info via the cloud, and all you need is an email address or name and company. Radium also recently added a user-friendly Chrome extension. Radium CRM is an effortless way to get work done with anyone. They provide the best tools so you can focus on the most important deals. Radium offers an "always free" plan for one user. Pricing then starts at $12 per month and goes up to $99 per month. Support and a 14 day free trials is offered.