check keeper

Credit Card Validation Utility.

Determines if two files are identical.

Keep track of time spent on multiple projects.

Keep track of time spent on multiple projects.

Check your knowledge of the Project Management Professional exam.

Check delivery status of packages.

Check your level of knowledge for the SAT examination.

Check documents for plagiarism against other documents on your Mac.

Check spelling in several languages.

Check POP3 mail on server before downloading.