There are a few key ways in which Affinity Publisher is similar to InDesign:
-Both are professional-grade design tools used by graphic designers, illustrators, and publishers.
-Both have similar features and tools for creating sophisticated page layouts.
-Both programs can be used to create print-ready documents as well as digital publications.
That said, there are also some important differences between the two programs. Perhaps the most significant difference is that Affinity Publisher is a relative newcomer to the world of professional design software, while InDesign has been around for over two decades. This means that InDesign has a much larger user base and more comprehensive online resources.
Another difference is that Affinity Publisher is only available for Mac and Windows, while InDesign is also available for Adobe's Creative Cloud platform. This means that InDesign integration with other Creative Cloud tools, such as Photoshop and Illustrator, is generally more seamless.