Question: I'm looking for a plagiarism checker that can scan against a comprehensive database of paid publications, do you know of any?

If you're looking for a plagiarism checker that scans against a broad database of paid publications, Trinka is a good choice. The AI-powered writing assistant checks for plagiarism against a broad paid publication database, but it also offers a variety of other tools geared for academic writing. That includes grammar and style checks, a citation checker and a proofreader that works in MS Word, Google Chrome and other browsers.

Another good option is iThenticate, geared for researchers, publishers and scholars. It compares documents against more than 47 billion web pages, 190 million subscription content sources and 81,000 journal articles. iThenticate's integrated interface lets you assess matches and flag AI-generated content, so it's a good tool for ensuring the integrity of important documents.

For those who need multilingual support and a big database of scholarly articles, Plag offers detailed plagiarism reports and real-time checks against recently published articles. With a database of more than 80 million scholarly articles and support for 129+ languages, Plag offers a broad and accurate plagiarism detection.

Last, Paperpal offers accurate plagiarism detection with similarity scores and color-coded results. It also offers real-time grammar checking and a paraphraser that maintains a formal tone. Paperpal works online and offline through MS Word integration and is certified for data security, so it's a good pick for academic writing.