Upland Kapost

Kapost is a content operations software that helps businesses plan, produce, distribute, and analyze their digital marketing content. While it focuses on marketing content rather than a general publishing platform for independent writers, it does offer features related to content creation, distribution, and analytics. Specifically, it mentions 'Analyze content performance and impact via Insights' which aligns with reader engagement metrics. It also supports 'Publication Management' through its ability to manage and track campaigns and content creation, and 'Social Sharing & Embedding' through its distribution capabilities to multiple platforms including social media.