Grammarly
Grammarly is a cross-platform cloud-based writing assistant that reviews spelling, grammar, punctuation, clarity, engagement and delivery mistakes. It uses AI to identify and search for an appropriate replacement for the mistake it locates.
Turnitin
Turnitin is an Internet-based plagiarism detection service run by the US company Turnitin, LLC, a subsidiary of Advance Publications. Founded in 1997, it sells its licenses to universities and high schools who then use the software as a service (SaaS) website to check submitted documents against its database and the content of other websites with the aim of identifying plagiarism.