EssentialPIM software is a personal information manager that helps users manage their schedule, contacts, tasks, notes, and passwords in one place. It offers various customization options, such as the ability to customize the interface and create custom fields. The software also provides synchronization with popular online services, including Google Calendar and iCloud, and allows users to import and export data in various formats. Additionally, it has strong security features to protect users' sensitive information, such as password protection and encryption.