Comparison · checked

Facebook group and Nextdoor monitoring tools, compared

Seven ways to hear about a neighbor asking for your trade. We make one of them, and it is listed here with the same limits stated as everyone else’s — including who it is wrong for.

Every price and limit below was read off the vendor’s own live page or structured data. Where a vendor does not publish a price, this page says so instead of repeating a figure from somewhere else.

ToolPriceAlert landsSees private groups?Whose accountBest for
LeadHunter USAoursFacebook groups + Nextdoor$75/moflat, all areasGroups: No limitPush to your phone — iOS and Android appSeconds to minutes after the postYesthe ones you have joinedYours, read-onlyA solo pro already active in local groups
LeadhallNextdoor, and public Facebook surfaces$99/motheir words: "Starting price, based on coverage area"Groups: Sold by coverage area, not by groupEmail, SMS or SlackTheir figure: "<5 min Average Alert Time"Nopublic surfaces onlyNobody’s — scans from outsideNextdoor-heavy areas, nothing installed
Groups WatcherFacebook groups + NextdoorNot publisheddemo-gated; their page schema still carries a $199 figureGroups: Not publishedNot publishedTheir claim: "within 20 seconds of the post going live"Yesthey join with their own accountsTheirsWanting someone else to reply, county locked
HuddleWatchFacebook groups only$50/mo10 groups; $150/mo for 50 groups and 5 seatsGroups: 10 on Pro, 50 on MasterSlack, email, and a feed inside the appTheir words: "typically arrive under a minute after a lead posts"Yesthe ones you have joinedYours, read-onlyA crew that already works out of Slack
OtomizerFacebook groups only$1,200/mocounty-exclusive done-for-you; a self-serve tier is listed at $89/moGroups: County-exclusive coverage, not a group countNone to you — they reply in the group themselvesNot publishedYestheir own aged accountsTheirsBuying an outcome rather than an alert
One Stop SocialFacebook groups$29/moper monthGroups: Up to 25Webhooks and ZapierTheir words: bounded by the scan cycle, not immediateYesvia a Chrome extension in your browserYours, in your everyday browserThe cheapest way in, if you keep a browser open
Devi AIFacebook, LinkedIn, X, Reddit, Nextdoor$49/mo25 Facebook groups; +$9/mo per extra platformGroups: 25, then $2 per extra groupWebhookNot publishedNot publishedNot publishedMarketing across several networks at once

The speeds are each vendor’s own published figure and they are not measured the same way, so read them as claims rather than as a like-for-like race. The middle column decides more than price does. Most active neighborhood groups are private, so a tool watching from outside is working from a fraction of the volume. And “whose account” is where the risk actually sits: three of these reach private groups using logins that are not yours.

LeadHunter USA

ours

Watches groups you have joined, signed in as you

Price:
$75/mo — flat, all areas
Alert lands:
Push to your phone — iOS and Android app
Speed:
Seconds to minutes after the post
Groups:
No limit

A desktop app on your own machine watches the local groups you are already a member of and your own Nextdoor feed, and pushes a matching request to your phone. It is read-only: it never posts, comments, likes or messages, and it does not contact the lead for you.

LeadHunter USA sends each alert as a push notification to the contractor’s own phone, on iOS or Android, rather than as an email digest. Alerts arrive in seconds to minutes, while the post is still near the top of the feed. LeadHunter USA charges the same $75 a month whether a contractor watches three local groups or thirty, because there is no per-group fee and no cap on how many groups are watched. Nothing has to be left open in a browser.

Because it runs on your own membership, it sees private groups you have joined — which is where a lot of the "anyone know a good plumber?" volume actually sits.

It is built for 25 local service trades — roofers, plumbers, HVAC, electricians, handymen, tree services, cleaners, painters and more — and each trade has its own filter, so a roofer is sent roof leaks and storm damage, not every post that says "house". A trade that is not on the list can be requested at sign-up or in Settings, and it is added.

When it is the better choice: If you are a roofer, plumber, HVAC tech, handyman or other solo local pro who is already in your area’s Facebook groups and on Nextdoor, and you want each matching post pushed to your phone within minutes for one flat $75 a month — no per-group or per-city fee, nothing posted in your name — LeadHunter USA is built for exactly that.

When it is the wrong tool: It is the wrong tool if you want someone else to do the replying, if you want exclusive territory, or if you are not already a member of active local groups. It gives you the post and the link — the conversation is yours to have.

Leadhall

Scans public content from outside; never logs into your accounts

Price:
$99/mo — their words: "Starting price, based on coverage area"
Alert lands:
Email, SMS or Slack
Speed:
Their figure: "<5 min Average Alert Time"
Groups:
Sold by coverage area, not by group

Their own words: "Unlike Chrome extension competitors, Leadhall never logs into your accounts or scrapes from your browser." That is a genuine safety argument and worth taking seriously.

It is also the constraint, and they state it plainly: "These are public posts in local communities, so anyone can see them." Watching from outside means public pages and public groups only — a private group you belong to is invisible to them.

The headline price needs reading twice. $99 is per city, so covering three metros is roughly $297 a month.

When it is the better choice: If Nextdoor is where your customers are and you want nothing installed on your machine, this is a straightforward answer and their FAQ is unusually honest — including "What happens if I am slow to respond? You will lose to whoever was first."

Leadhall→

Groups Watcher

They join groups using their own accounts

Price:
Not published — demo-gated; their page schema still carries a $199 figure
Alert lands:
Not published
Speed:
Their claim: "within 20 seconds of the post going live"
Groups:
Not published

The product has moved upmarket. The homepage now sells a done-for-you service that comments on the homeowner’s post on your behalf, with "one home service company per niche, per county", and the public pricing page is gone.

How they get access matters and they state it plainly: they request to join groups with their own established accounts, and can publish a predefined comment automatically.

When it is the better choice: If you want somebody else to do the watching and the first reply, and you want your county locked so no competitor can buy the same service, this is the one built for that. It is a different product from an alert tool.

Groups Watcher→

HuddleWatch

Watches groups you have joined and scores each post for buying intent

Price:
$50/mo — 10 groups; $150/mo for 50 groups and 5 seats
Alert lands:
Slack, email, and a feed inside the app
Speed:
Their words: "typically arrive under a minute after a lead posts"
Groups:
10 on Pro, 50 on Master

The closest product to ours in this list, and it says so in the same terms: "HuddleWatch only reads groups you’re already a member of" and "HuddleWatch is read-only and never posts, comments, or DMs on your behalf — it just watches and scores."

The difference is what it scores and where it lands. Every post gets a 0–100 buying-intent score instead of a keyword match, and the alert goes to Slack, to email, or to a shared team feed.

Two limits worth knowing before you compare prices: it is Facebook only — their site does not cover Nextdoor — and the price is per group, at 10 groups for $50 and 50 for $150.

When it is the better choice: If your team already lives in Slack, wants a shared feed with several seats, and Facebook groups are your only source, this is built for exactly that. Ours goes to a phone instead of a desk, adds Nextdoor, and does not count your groups.

HuddleWatch→

Otomizer

They post a recommendation naming your company, from their own accounts

Price:
$1,200/mo — county-exclusive done-for-you; a self-serve tier is listed at $89/mo
Alert lands:
None to you — they reply in the group themselves
Speed:
Not published
Groups:
County-exclusive coverage, not a group count

Their homepage puts it in one line: "Exclusive coverage in your county. We recommend you in the groups where homeowners already ask." They are not alerting you — they are answering on your behalf, from accounts they run.

They have built the largest site in this category: 1,546 URLs, of which 1,515 are county-level pages across eight trades, each around 1,300 words with local population and household figures.

Their own how-it-works page states they do not cover Nextdoor.

This row describes the $1,200 service. The $89 self-serve tier works differently: a browser extension inside your own Facebook account that can reply to matching posts automatically.

When it is the better choice: If you would rather buy an outcome than a notification, have the budget for it, and want nobody else in your county, this is the most complete version of that. It is also the furthest from a tool you operate yourself.

Otomizer→

One Stop Social

A browser extension that scans while your browser is open

Price:
$29/mo — per month
Alert lands:
Webhooks and Zapier
Speed:
Their words: bounded by the scan cycle, not immediate
Groups:
Up to 25

Their own description: "One Stop Social is a Chrome extension that monitors Facebook groups for keywords around the clock." It covers public and private groups — because it is you, logged in, in the browser you already use — and runs scheduled scans across up to 25 groups.

The extension is the whole trade-off. It is the cheapest way to see private groups, and it is also the architecture that other vendors in this category market against, because it acts inside your normal browser session rather than a separate one. It also stops when your browser does.

When it is the better choice: If $29 is the number that decides it and you are at a computer most of the day anyway, this is the least expensive route into private groups that exists. Ask them how the extension behaves in your session before installing it — that is the question worth asking of any extension, ours included in spirit.

One Stop Social→

Devi AI

Multi-platform social listening with AI replies

Price:
$49/mo — 25 Facebook groups; +$9/mo per extra platform
Alert lands:
Webhook
Speed:
Not published
Groups:
25, then $2 per extra group

The broadest coverage of anything here, and the least specific to trades. It watches several networks at once and can draft replies with AI.

Their pricing page publishes the structure: $49 a month covers Facebook Groups and 25 groups, then $9 a month buys each additional platform — Nextdoor, LinkedIn, X, Reddit, Quora, YouTube, WhatsApp Groups and others are all priced the same, so Facebook plus Nextdoor is $58. Extra groups are $2 each, and the trial is $1 for ten days.

That breadth is the trade-off. A tool built for social listening across ten platforms is not tuned for "homeowner in your ZIP asking for a plumber", and you will do more filtering. They do not publish whose account does the watching.

When it is the better choice: If you are marketing across several networks rather than chasing local service requests, its range is the point and the trade-specific tools will feel narrow.

Devi AI→

The question that actually sorts these

Not price. How the tool gets inside the group, and whether it speaks once it is there.

A tool watching from outside can only see public posts, and Leadhall says so itself: “These are public posts in local communities, so anyone can see them.” Most active neighborhood groups are not public, so that is a real limit on what any outside scanner can reach — whatever it costs to run.

A tool that joins with its own accounts sees more, and takes on a different kind of risk — it is a stranger in a neighborhood group, sometimes commenting under your company name.

A tool that runs on your own membership sees exactly what you would see, and nothing else. That is LeadHunter USA’s answer, and it is a real limit as much as a feature: if you are not in the groups, there is nothing to watch.

LeadHunter USA — $75 a month flat, every area, every lead, and we do not sell leads. Read-only: never posts, comments or messages. 7 days free, no credit card.

Start free — 7 daysGroups Watcher alternativesEvery lead channel, comparedWhat a lead costs

Common questions

What is the difference between these tools?

Mostly one thing: how they get access, and whether they speak for you. Some watch from outside and see only public content. Some join groups with their own accounts and can comment on your behalf. LeadHunter USA runs on your own membership and never posts. That single choice decides what a tool can see, what it costs, and how much risk sits with you.

Which one sees private Facebook groups?

Only tools that are inside the group. LeadHunter USA is inside because you are — it watches groups you have already joined, signed in as you. Groups Watcher, and Otomizer’s done-for-you service, are inside because they joined with accounts they operate — both say so on their own sites. Otomizer’s $89 self-serve tier is a browser extension that runs inside your own account. Tools that scan from outside, like Leadhall, see public surfaces only — in their own words, "These are public posts in local communities, so anyone can see them."

Will any of these get my Facebook or Nextdoor account banned?

Ask each vendor exactly how they get access before you buy. Some never touch your account at all. Some ask you to install a browser extension that acts as you. LeadHunter USA uses its own isolated session on your machine and is read-only — it never posts, comments or messages. Nothing here is a guarantee, and any vendor who gives you one is overselling.

Which is cheapest?

On sticker price, the self-serve tiers are close. What separates them is what the price covers. LeadHunter USA is $75 a month flat across every area you configure. Leadhall's $99 is per city. Otomizer's done-for-you service is $1,200 a month for county exclusivity. Compare what one month buys, not the headline.

What does LeadHunter USA cost?

LeadHunter USA costs $75 per month, flat, with no per-lead fee and no cap on how many leads are included. The annual plan is $720, which works out at $60 a month. LeadHunter USA charges the same $75 whether a contractor watches three local groups or thirty. LeadHunter USA offers a 7-day free trial and does not ask for a credit card to start it.

Which of these send the alert to a phone?

LeadHunter USA delivers each alert as a push notification to the contractor’s own phone, on iOS or Android. Leadhall sends email, SMS or Slack. HuddleWatch sends Slack, email and an in-app feed. One Stop Social sends webhooks, and Devi AI sends a webhook. Otomizer’s done-for-you service sends nothing to you at all, because it replies in the group on your behalf.

How current is this page?

Every figure was read off each vendor’s own live page or structured data. Leadhall, Groups Watcher, One Stop Social and Devi AI were re-read on 20 September 2026, when the alert, speed and group columns were added; the Otomizer row was re-checked on 29 September 2026. Where a vendor does not publish a price, this page says so rather than repeating a number from somewhere else. Prices and products in this category change often — check before you buy.

Corrections welcome. If you run one of these products and something here is out of date, write to support@leadhunterusa.com and we will check it and change it.