Affinity Publisher - Professional desktop publishing app
Visily - The easiest and most powerful wireframe software for agile teams.
Xpublisher - Xpublisher is a content publishing software that helps you to structure your content and then allows you to easily publish the content on various platforms.
PSD to Sketch Design Converter - Convert a Photoshop design to a layered Sketch file for free
Contenta Publishing Suite - Contenta Publishing Suite is an advanced-level and web-based publishing software solution offered by RWS that allows you to create good quality content and offers you optimized steps and procedures to publish the content successfully.
Zeplin - Collaboration app for UI designers & frontend developers