amoCRM functions as a web-based customer relationship management (CRM) service for managing sales. It includes a complete database that comprises all the user's clients and leads, with a Leads tab as a reference point for all information related to them. Also included are a hosted system that displays up-to-date day-to-day operations and sales activities, a reminder system to keep track of projects and deadlines. amoCRM users can also install free apps on their iOS or Android devices to view a list all leads and contacts, a task list containing upcoming deadlines, and important events and past interactions; and there's VoIP integration with Twilio to manage all communication over the phone. The manufacturer of amoCRM is headquartered in San Francisco.