Is CheckBuilderPro Optimized for Your Mac?

You will get this warning if you run the older CheckBuilderPro 2.x versions.

We are excited to announce that we have released CheckBuilderPro version 3! It is a total re-write and is 64 bit. Apple has announced that the *next* major version of the macOS will only support 64 bit apps. So be ready with the all-new CheckBuilderPro. Contact us for upgrade info.

To learn more about the change to 64 bit, read Apple's explanation.