Duolingo - Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.

Ship SaaS - This starter kit includes all the integrations you need to build a SaaS app fast!

Mondly - Learn 33 languages in 500 bite-size lessons and 14 conversational modules.

Buddy - The simplest CI/CD tool ever made, acclaimed by top developers worldwide. It uses delivery pipelines to build, test and deploy software. Pipelines are created with over 100 ready-to-use actions, that can be arranged in any way.

MondlyAR - Learn languages in augmented reality

CircleCI - CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.