It’s no secret that Apple is phasing 32-bit app support in macOS, so it’s better to find out which apps you rely on that still need updating. Your Mac can give you that information, but 32-bitCheck makes the process even easier. The app checks the apps in the folder you specify, plus you can tell it to check all bundles and Mach-O, too. Checking my Applications folder shows Adobe CS6 apps and FileMaker Pro 11 are 32-bit, so they’ll stop working whenever Apple makes the move to 64-bit only with macOS. 32-bitCheck is a free download at the Eclectic Light website.
Check It Out: Check Your Mac for 32-bit Apps with 32-bitCheck