Short answer: not from the outside, and not around the clock. Anyone who tells you different is leaving out the part where your own browser and your own Facebook account do the work. Here is the whole picture, plainly.
Why groups are different
Facebook groups sit behind a login. There is no public feed of group posts for a server to read — Facebook closed its group tools to outsiders years ago, and a group you are not a member of is invisible by design. A post inside a group exists only for the people in that room, on Facebook's own pages.
How the tools that claim it actually do it
They install a browser extension that reads group pages through your own logged-in session — the same cookie your browser uses to show you Facebook. That has three consequences the sales pages do not lead with:
- It stops when you stop. Browser closed, laptop asleep, logged out — the ear hears nothing. One tool's own write-ups concede it “requires your computer and browser to be active.”
- It only hears groups you open and belong to. A group nobody on your account has joined is never heard.
- The account at risk is yours. Reading pages automatically through your session sits against Facebook's rules, whatever the tool promises. At least one store reviewer reports their Facebook account was banned. Frequency unknown — but the account on the line is never the tool's.
What actually works instead
Two honest options. First: be in the groups yourself. Join the handful of groups where your customers gather, and read them like a person — because in that room, only a person is allowed to be present. Your time there is well spent precisely because no machine can do it.
Second: cover the open rooms with a machine. The same people ask the same buying questions in public — on Reddit above all, where “who do you recommend for…” is the native language, and on Bluesky and in public forums. Those places can be listened to around the clock, by servers, with no one's account at risk. That is the half a tool should carry, so your own hours go to the rooms only you can enter.
Where AskCatch stands
AskCatch does not watch Facebook groups, and says so before you pay — not in the small print. We only listen where listening is allowed and runs around the clock. If a salesman for any tool cannot explain its Facebook mechanism in one honest sentence, the mechanism is your browser.