RETAINUSER® CRM is a software that support business owners simply track all activists and nurture relationships with their leads and clients. CRM that helps you Sell Smarter, Better, Faster. Real Estate lead management system Retain user is an emerging global software company leading in the field of business process automation and CRM ( Customer relationship management ). The company has been well recognized by key industry analysts as the best CRM for real estate. Retain user has the flexibility to meet your unique sales, marketing, and service scenarios. We help leading companies increase Sales, strengthen and maintain long-lasting relationships with customers with our Lead Management Software.