Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Creativity 365 - Cross-device content creation suite
Mailbird - Mailbird is the best email client for Windows 7, 8 and 10
Microsoft Teams - Microsoft Teams provides the enterprise-level security, compliance and management features you expect from Office 365, including broad support for compliance standards, and eDiscovery and legal hold for channels, chats, and files.
eM Client - eM Client is a fully-featured email client for Windows and macOS with a clean and easy-to-use interface. eM Client also offers features for calendars, tasks, contacts, notes, and chat.