adminMongo - An open source admin user interface for your MongoDB
Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
JawsDB - Fast, reliable, no-bullshark MySQL as a service
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
MongoDB Startup Accelerator - Get $3,000 in free Atlas credit to run MongoDB in the cloud.
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.