If you’re comparing Mentbot and ManyChat, you’re probably trying to solve the same problem: comments piling up under your Facebook posts and leads slipping away before your team can answer. Both tools automate replies. They come at it from very different directions, though — and the right pick depends on what your page actually does all day.
We build Mentbot, so read this with that in mind. We’ve kept the comparison factual, and we’ll tell you plainly where ManyChat is the better choice.
Choose ManyChat if you’re a marketer building conversational funnels — multi-step bot flows, lead magnets, quizzes, drip sequences across Facebook, Instagram, and WhatsApp. It has the best flow builder in the industry, and comment automation is one entry point into it.
Choose Mentbot if you’re a seller or page admin whose comments are the pipeline — product posts, live-selling, “how much?” fifty times a day. Mentbot does one job end-to-end: public reply + private Messenger pull on every matching comment, comment hiding, team alerts when a chat goes unanswered, and daily stats. Five-minute setup, no flows to build.
Mentbot is one rule, not a flow builder: set your keywords, public reply, and private DM once, and every future matching post is covered.
| Mentbot | ManyChat | |
|---|---|---|
| Auto public reply to comments | Yes | Yes |
| Auto private DM (comment-to-Messenger) | Yes | Yes |
| Runs on all future posts automatically | Yes — page-wide rules | Per-post / per-trigger setup |
| Hashtag targeting (“only posts with #sale”) | Yes | No (post-by-post selection) |
| Keyword triggers in comments | Yes | Yes |
| Reply to image/sticker comments | Yes | Limited |
| Auto-hide comments (stop competitor poaching) | Yes | Limited |
| Slow-reply / unread inbox alerts for your team | Yes | No |
| Daily reply stats & response-time history | Yes | Analytics focused on flows |
| Visual flow builder (multi-step bots) | No | Yes — best in class |
| Drip campaigns, sequences, broadcasts | No | Yes |
| Instagram & WhatsApp channels | No — Facebook focused | Yes |
| AI conversation features | No | Yes (paid add-ons) |
| Setup time to first automation | ~5 minutes | 30 min – few hours |
| Unlimited pages per account | Yes, every plan | Priced per account/contacts |
The pricing models are the biggest practical difference.
ManyChat has a free tier (with ManyChat branding and limits) and paid plans starting around $15/month — but pricing scales with your number of contacts. A post that goes viral and pulls in thousands of commenters grows your contact list, and your bill moves up with it. Advanced features and AI add-ons price separately.
Mentbot prices by daily comment volume, flat: $9/mo (100 comments/day), $19/mo (1,000), $29/mo (3,000), $49/mo (5,000). Every feature is on every plan — the tiers differ only in volume and alert frequency — and all plans include unlimited pages. A viral post never changes your plan; you just use your day’s volume.
Both offer free entry: ManyChat’s free tier is ongoing but limited; Mentbot gives you 14 days of everything free, no card.
ManyChat is a platform you invest in. You connect your page, learn the flow editor, build a message sequence, attach a Comments trigger to a specific post, test it, and repeat per campaign. Powerful — and worth it if funnels are your job. But comment automation lives inside a bigger system you have to operate.
Mentbot is a rule you set once. Connect the page, choose scope (all posts / hashtag / keywords), write the public reply and private message, done — every future matching post is covered automatically. For pages posting products daily, “no per-post setup” is the feature: your Tuesday-night post is automated because it exists, not because someone remembered to attach a trigger.
Mentbot’s daily stats — comments handled, auto-reply rate, and response times — the reporting a comment-selling team actually manages against.
The workflow after the comment also differs. ManyChat’s answer to “what happens next” is more bot: flows, conditions, AI steps. Mentbot’s answer is a human: it opens the Messenger chat, then alerts your team the moment a reply sits unread, because in comment-selling the close rate lives in fast human follow-up, not deeper automation.
Being honest about the gaps:
Can I use both? Technically yes (different posts), but running two tools that both send private replies on the same posts will conflict. Pick one per page.
I’m on ManyChat now — is switching hard? Switching for comment automation takes minutes: connect your page to Mentbot, set one rule, and disable ManyChat’s comment triggers. Your Messenger history stays — conversations belong to your page, not the tool.
Does either tool risk my page? No — both use Facebook’s official API and permissions you grant. Avoid unofficial browser-script “bots”; those are the ones that get pages restricted.
What if I need flows later? Start with the problem you have today. If comments are leaking sales now, fix that in five minutes; you can always add a flow tool for campaigns later.
The cheapest way to decide is to run Mentbot through its 14-day free trial on one page: set a keyword rule, publish a product post, and compare the Messenger conversations you get this week against last week. No card, cancel anytime — and if you find yourself wishing for quiz funnels instead, ManyChat will still be there.
