The four platforms RedShip does not watch
Start with the row no feature can compensate for in either direction: a conversation you never see.
RedShip is a Reddit product. That is not a criticism and it is not something we inferred from a thin marketing site — it is the product's stated scope, repeated on every page it publishes. Its footer describes it as “Find perfect opportunities on Reddit with AI-powered monitoring”, and its whole feature list is Reddit-scoped. Grepping its homepage for “Quora”, “LinkedIn” and “Hacker News” returns nothing on all three.
Most usefully, RedShip says it itself. Its own comparison page against ParseStream lists, under “Pick ParseStream if…”, the line “Covers 5 platforms: Reddit, X, LinkedIn, Quora, Hacker News (Quora coverage is rare)”, and its feature matrix marks the multi-platform row absent for RedShip and present for us. When a vendor concedes a row on its own comparison page, that row is settled.
ParseStream covers all five. Reddit posts and comments and Hacker News stories and comments are on the $29 Lite plan; Quora questions and answers, LinkedIn posts and X posts and replies start on Pro at $79. LinkedIn is posts only, not comments, which we say on every page rather than in a footnote.
Whether that decides anything is a question about your buyers, not about the tools. Plenty of businesses genuinely only need Reddit — if your category lives in three subreddits and nowhere else, a focused Reddit tool with a Chrome extension and an SEO scanner is a better fit than a broader one, and you should buy RedShip. But if the question that precedes a purchase in your category gets typed into Quora, or a head of operations complains about your competitor on LinkedIn, or your launch gets argued about on Hacker News, RedShip cannot see any of it at any price.