CommentGuard
- What it is
- Facebook and Instagram comment moderation tool
- How it bills
- Per comments received each month
- Cheapest paid plan
- $29 Starter, billed monthly; yearly billing gives 2 months free
- Free option
- 7-day free trial, no card needed
CommentGuard alternative for Facebook comments
CommentGuard hides spam and harmful comments on Facebook and Instagram posts and ads, and can auto-reply publicly or by private message. It adds AI agents that draft or send replies, and a shared inbox for teams. Plans are priced by how many comments you receive each month, with every feature on every plan.
Prices and features checked
At a glance
Mentbot
- What it is
- Facebook comment automation
- How it bills
- By comments per day
- Cheapest paid plan
- $9 Basic, 100 comments a day
- Free option
- 14-day free trial
What you pay at your comment volume
Monthly price, billed monthly, for one Facebook Page. Mentbot includes every feature on every plan, so its price only changes with volume.
| Comments per day | CommentGuard | Mentbot |
|---|---|---|
| 100 | $29 Starter — 5,000/mo ≈ 166/day; counts every comment received | $9 Basic plan, every feature |
| 1,000 | $199 Elite — 50,000/mo ≈ 1,666/day; Pro's 25,000/mo ≈ 833/day | $19 Pro plan, every feature |
| 3,000 | $399 100K plan — 100,000/mo ≈ 3,333/day; assumes a 30-day month | $29 Premium plan, every feature |
Features for Facebook comments
Only what matters for answering comments on a Facebook Page.
| Feature | CommentGuard | Mentbot |
|---|---|---|
| Auto-reply to comments in public | Yes Rotating reply variants, optional delay and mention | Yes |
| Auto-send a private Messenger message | Yes Tick 'Send as private message' in an automation | Yes |
| Keyword triggers | Yes Also emoji-only and mention-only triggers | Yes |
| Limit rules to certain posts | Limited Posts only, ads only, or both; no per-post scope documented | Yes Pick posts or use a hashtag |
| Auto-hide comments | Yes Keyword, link, profanity filters; set per Page, not per post | Yes |
| Auto-like comments | No Not offered | Yes |
| Alert when a customer is left waiting | No Daily digest email only, no per-comment alerts | Yes Telegram alerts |
| Several Pages on the cheapest plan | Yes Unlimited Facebook and Instagram Pages on every plan | Yes Unlimited Pages |
| Visual chatbot flow builder | No Has AI reply agents, not multi-step flows | No |
| Instagram, WhatsApp and other channels | Yes Instagram posts and ads; Facebook and Instagram DM inbox | No Facebook Pages only |
CommentGuard pricing
Per comments received each month. 7-day free trial, no card needed.
| Plan | Monthly | What you get |
|---|---|---|
| Starter | $29 | 5,000 comments/mo (≈166/day), unlimited Pages and users |
| Growth | $49 | 10,000 comments/mo (≈333/day), unlimited Pages and users |
| Pro | $99 | 25,000 comments/mo (≈833/day), unlimited Pages and users |
| Elite | $199 | 50,000 comments/mo (≈1,666/day), unlimited Pages and users |
| 100K | $399 | 100,000 comments/mo (≈3,333/day), upgrade in billing portal |
Choose CommentGuard if
- You need to moderate comments on ads as well as posts, with filters for profanity, negativity, links and contact details.
- You want AI to draft or send replies based on your own FAQs and product details.
- A team shares the work: unlimited users, roles and response-time stats are on every plan.
- You manage Instagram comments too, not only Facebook Pages.
Choose Mentbot if
- You get up to 1,000 comments a day: Mentbot Pro is $19 a month, and CommentGuard's plan for that volume is Elite at $199.
- You want a rule to fire only on specific posts, or on a hashtag.
- You want a Telegram alert when a customer message sits unread past a delay you pick, not a daily digest.
- You only need Facebook Page comments handled, with every feature on the $9 plan and setup in about 5 minutes.
How to switch to Mentbot
- In CommentGuard, list each automation: its keywords, its reply variants, and whether it sends a public reply, a private message, or both.
- Start a Mentbot 14-day free trial and connect the same Facebook Pages.
- Create one Mentbot rule per reply. Add the keywords, the public reply variants and the Messenger message in the same rule.
- Mentbot hides comments that match a rule's keywords, so add the words you want hidden and turn on auto-hide.
- Test on one post, then pause the CommentGuard automations so a comment doesn't get two replies.
Questions
Is Mentbot cheaper than CommentGuard?
At the volumes we compared, yes. 100 comments a day is $9 on Mentbot Basic and $29 on CommentGuard Starter. 1,000 a day is $19 on Mentbot Pro and $199 on CommentGuard Elite. CommentGuard counts every comment you receive, including ones no rule replies to. Prices checked on 14 September 2026.
Can Mentbot moderate comments on my Facebook ads?
Mentbot works on comments on your Facebook Page posts. It has no ad-specific moderation. If most of your comments come from ads, CommentGuard covers both posts and ads.
Does Mentbot use AI to write replies, like CommentGuard?
No. Mentbot sends the replies you write and rotates between several variants. CommentGuard has AI agents that can draft or send replies based on your own FAQs.
Can both tools send a private Messenger message to the commenter?
Yes. In CommentGuard you tick 'Send as private message' on an automation, and you create two automations to send a public reply and a DM together. In Mentbot, one rule can do both.
Does Mentbot work with Instagram?
No. Mentbot handles Facebook Page comments only. CommentGuard also covers Instagram posts and ads.
Compare other tools
Sources
Prices change. We re-check each vendor at least every 90 days — tell us if something is out of date.
- CommentGuard pricing
- CommentGuard homepage (features)
- CommentGuard guide to Facebook auto-comments
- CommentGuard help: how to set up automations
- CommentGuard help: send a comment reply and DM together
- CommentGuard help: can moderation apply to individual posts or ads
- CommentGuard help: auto-like or bulk-like comments
- CommentGuard help: email notification for each comment