GroupSignal vs Narrative Field
Narrative Field, at narrativefield.com and formerly Groups Monitor, is a managed service: its own monitoring accounts watch the groups, and AI reads their posts against prompts you write. GroupSignal is a Chrome extension that reads the groups you've joined through your own account. Both match posts by intent rather than keywords alone.
At a glance
| GroupSignal | Narrative Field | |
|---|---|---|
| What it is | Chrome extension | Managed service |
| How it reads your groups | Reads the groups you choose, private ones included, through the Facebook account signed in to your Chrome. Your Facebook login stays in your browser. | Its own monitoring accounts watch the groups you submit. A private group needs its admin's approval, which it says typically takes 1 to 2 days. You don't install anything or share your Facebook login. |
| When it checks | Continuously while Chrome is open on your computer and signed in to Facebook, one group after another at a steady pace. When Chrome opens again, it catches up on posts from up to the last 24 hours. Alert times vary. | Says alerts typically arrive within 1 to 3 minutes of a post becoming available to its monitoring, and that Facebook, permissions, network conditions and AI processing affect timing. |
| How it finds posts | AI reads each new post against what you describe in plain language, by meaning and in any language, with no keywords. | AI monitoring prompts you write in plain English, matched on intent, not keywords alone. Several prompts can cover the same groups. |
| Posting and commenting | Never posts, comments, reacts or sends messages. | Says it never automatically likes, comments, messages or publishes posts. |
| Where you see matches | An online inbox at sosaly.com on any device, including your phone, with the reason each post matched. Browser alerts, and Zapier or Make webhooks sent from Sosaly's servers. | A dashboard, email, Slack and HTTPS webhooks, each alert linking to the post. Webhooks can carry matches or every collected post. |
| Listed price | $10/month includes five group slots. Each additional slot is $2/month. Up to 25 slots. | Professional is $89/month for 10 groups; Business is $389/month for 50. |
| Trial | 7-day free trial, no card required. | No free trial; the first Professional charge is refundable in full within 7 days. |
Getting into private groups
A private group needs its admin's approval before Narrative Field can watch it, which it says typically takes one to two days, and it refunds a private group it can't get into. GroupSignal reads private groups you're already a member of from the start, because it uses your own account, so there's no approval to wait on. It needs Chrome open on a computer, and nothing is checked while Chrome is closed.
How they find posts
Narrative Field uses monitoring prompts you write in plain English, and several can cover the same groups. GroupSignal uses monitors: two sentences saying who and what to find, and what to ignore, each applied to the groups you choose. AI reads every new post against them, by meaning and in any language (writing a monitor).
When they check
Narrative Field says alerts typically arrive within one to three minutes of a post becoming available to its monitoring. GroupSignal reads your groups continuously while Chrome is open and signed in to Facebook, one after another at a steady pace, and alert times vary. When Chrome opens again, it catches up on posts from up to the last 24 hours.
Where you see matches
Narrative Field sends alerts to a dashboard, email, Slack and HTTPS webhooks, and its webhooks can carry every post it collects. GroupSignal keeps matches in your inbox at sosaly.com, on any device, with the reason each post matched, raises a browser alert, and can send matches to Zapier or Make. Posts that don't match are discarded.
What they cost
Narrative Field Professional is $89/month for 10 groups, and Business is $389/month for 50, with no free trial and a full refund of the first Professional charge within 7 days. GroupSignal is $10/month for five group slots and $2/month for each extra slot, up to 25, so 10 groups in one monitor cost $20/month. It has a 7-day free trial, no card required.
Which to choose
- Narrative Field if your own Facebook account shouldn't be involved, your groups must be watched while no computer of yours is on, you watch more than 25 groups, or you want every collected post sent on.
- GroupSignal if you want the groups you've already joined watched through your own account, with no approval to wait on, and a lower price.
Where these facts come from
We checked what this page says about Narrative Field on , against the tool's own pages below. Prices and features change, so check them before you decide. GroupSignal's side comes from our GroupSignal and pricing pages.