How do I get the apps that do not work with Catalina, to work?

Hello there, try so see if there exists 64bit versions or even if there is any updates that you can do.

If you want to revert here you go:

https://support.apple.com/en-ca/guide/mac-help/mh15216/mac

Howiecohen wrote:

how do I get the apps that do not work with Catalina, to work?

[Re-Titled by Moderator]

The easiest thing is simply update your software.

Most developers if they want there apps to work on the new Catalina have already issued 64-bit apps to replace the old 32-bits.

Visit their parent web page and download the updates.