Crowdin - Localize your product in a seamless way

Hexib - Hexib helps people to learn easier by connecting them to experts and makers of educational content.

POEditor - The translation and localization management platform that's easy to use *and* affordable!

Brilliant.org - Brilliant - Understand concepts and build your problem solving skills with thousands of free problems and examples in math, science, and engineering.

Lokalise - Localization tool for software developers. Web-based collaborative multi-platform editor, API/CLI, numerous plugins, iOS and Android SDK.

Math Doubts - Math Doubts is a scientific mathematics learning places, targets students, teachers and...