I have removed this app from my Mac, despite at one time having used it for years. Here's why: 1) App is now owned by MacPaw; acquired from the original developer. MacPaw is the same company that makes CleanMyMac X and CleanMyPC...products and company that have questionable reputation. 2) SENTRY is integrated into Unarchiver, supposedly according to dev to allow for 'crash reports' to be sent back to fix bugs; but Little Snitch shows this app 'phones home' regularly, even when there has been no errors...why? What info is being sent? See #1 above and add 1 + 1, regards companys' reputation etc. 3) source code is no longer open source; ostensibly to hide what calls home are doing and sending. 4) Keka does everything Unarchiver can do, with no RAR errors, and handles more formats, plus Keka can also ARCHIVE and unarchive, while Unarchiver can only unarchive, so why keep two apps? 5) the company has caught on that some users are uncomfortable with their reputation, so they created a website just for Unarchiver (theunarchiver.com) rather than directing users to macpaw.com, thinking this will help mask the fact that it is MacPaw behind the curtain.