MySQL is an open-source relational database system that efficiently stores and manages data using SQL. It's a popular choice for web applications and software due to its speed and reliability.

Paymo is a modern and intuitive project management application for project-based businesses and freelancers that bundles advanced task management, planning, scheduling, time tracking, collaboration and invoicing

Respond.io is a messaging platform designed to help businesses manage their communication across various messaging channels. It is aimed at streamlining and centralizing customer interactions, especially in the context of messaging apps.