As an academic institution, your primary concern when choosing a plagiarism detector is accuracy. In this respect, Turnitin is the clear winner. With its database of over 60 billion web pages and its proprietary algorithms, Turnitin can accurately identify instances of plagiarism, even if students have made minor changes to the original text. However, if you're looking for a tool that can do more than just detect plagiarism, Grammarly is the better choice. In addition to checking for plagiarism, Grammarly can also help you improve your writing style by identifying errors in grammar, spelling, and tone. And because Grammarly integrates with Google Docs, it's easy to use. As a result, Grammarly is the better choice if you want a comprehensive writing tool that can help you detect plagiarism and improve your writing style.