Is iAnnotate Version 4 A Separate Purchase From iAnnotate PDF?

Yes, iAnnotate 4 requires a separate purchase.

We released it this way because we put a lot of effort into updating iAnnotate for new platforms, adding new features, and preparing it for a really bright future.

We are very proud to have provided six years of free updates and support for the older app without any in-app purchases and hope that our users can understand.