Gengo is described as 'People-powered translation at scale. Gengo provides fast, affordable and quality translations by native speakers located worldwide' and is a Translator in the education & reference category. There are more than 10 alternatives to Gengo, not only websites but also apps for a variety of platforms, including SaaS, Windows, Linux and Self-Hosted apps. The best Gengo alternative is Weblate, which is both free and Open Source. Other great sites and apps similar to Gengo are Crowdin, Transifex, OneSky and Alconost Inc.