Yes, both ContentIn and Fachposts offer a Free Trial.
The starting price of ContentIn begins at $15.85/month, while pricing details for Fachposts are unavailable.
ContentIn offers several advantages, including Specifically designed for LinkedIn, Content creation platform, Promotes quick content creation, Assists in personal branding, Offering both free and paid plans and many more functionalities.
The cons of ContentIn may include a Limited to LinkedIn content, No video or slideshow support, Limited free plan, No multi-account support. and No automatic multi-language translation