NOT ON THE LIST IN 2021
Turnitin’s academic plagiarism checker is useful for both students and teachers
Website: turnitin.com
Cost: Commercial.
Availability: Online
Overall rankings in the 14 surveys: 2007-2020
2020: – | 2019: – | 2018: – | 2017: – | 2016: 126 | 2015: – | 2014: – |
2013: – | 2012: – | 2011: – | 2010: – | 2009: – | 2008: – | 2007: – |
Comments from some of those who selected Turnitin as one of their top tools in 2016
“for improvement of reporting” University/College teacher, USA, 2016