Sketch Engine is described as 'Corpus manager and text analysis software providing access to 500+ text corpora in 90+ languages. It offers various tools such as collocation search, thesaurus, terminology extraction, word list, n-grams, concordance, diachronic analysis, ' and is an app in the Education & Reference category. There are three alternatives to Sketch Engine for a variety of platforms, including Online / Web-based, Android, Chrome OS, Google Drive - Docs and iPad. The best alternative is Power Thesaurus, which is free. Other great apps like Sketch Engine are Thesaurus.com (Free) and SKELL (Free).