Spark Mail - Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues

Birdly - Birdly is an expense management and expense report solution for SMBs.

mlist - Email newsletters, outside of the inbox

Hermition - Manage your day to day routine accounting tasks with the help of AI and get paid online quickly for your work done.

TL;DR Email - Send short emails & read emails as fast as you read Facebook

Railz - Build Financial SME apps using normalized Accounting data