They are different shapes of product
Taplio is a broad LinkedIn growth suite. It covers scheduling, finding viral posts to remix, analytics, auto-connecting and DMs, carousels, engagement, and access through MCP. Planiberry is deliberately narrower: it syncs your profile and posts, matches you to a content strategy, turns that into a week of connected post ideas, and drafts each one in your measured writing voice. If you want outreach automation and a publishing queue, Taplio covers ground Planiberry does not.