Instagram comment bot
Free Instagram Comment Bot That Replies and DMs Every Commenter
Last updated: October 2026
Zaprep is a comment bot for Instagram that runs on Meta's official API. When someone comments on your post, it replies publicly and sends them a DM within seconds. No password, no browser bot, and a free plan with 1,000 Active Contacts a month.
The Free plan includes 1,000 Active Contacts/month · No credit card required
Built with security & compliance in mind
- Official Meta Graph API
- Meta-verified Tech Provider
- SSL / TLS encrypted
- GDPR-ready
- AES-256 token encryption
- Your password never stored
- We never sell your data
- Cancel anytime
What is an Instagram comment bot?
An Instagram comment bot is software that automatically responds when someone comments on your posts. It usually replies publicly and sends the commenter a private DM with a link, code or resource. A safe comment bot connects through Meta's official Graph API, never asks for your Instagram password, and only acts on comments left on your own posts.
Is there a free Instagram comment bot?
Yes. Zaprep's Free plan costs $0, with no time limit and no credit card. It covers 1 Instagram account or Facebook Page and up to 1,000 Active Contacts a month (the number of different people your automations message). DMs sent on the Free plan end with a short "Sent via @zaprep_official" signature.
Free plan includes
- ✓1 Instagram account or Facebook Page
- ✓1,000 Active Contacts a month
- ✓Keyword triggers on any post or Reel
- ✓Public comment reply plus private DM
- ✓Comment, DM and story reply triggers
Paid plans add
- +Follow Gate: send the DM only after they follow
- +Email collection inside the DM
- +No Zaprep signature on your DMs
- +More volume: 5,000 Active Contacts on Solo ($5.99/mo), 15,000+ on Growth ($14.99/mo)
Everything Your Instagram Comment Auto Reply Bot Should Do
Zaprep handles the full comment-to-DM workflow so your team can focus on closing conversations, not monitoring posts.
Instant DM on Comment
Meta webhooks fire in real time. Zaprep processes and sends the DM typically within 1–2 seconds of the comment landing, while the commenter is still on your post.
Keyword Triggers
Only fire DMs when comments contain specific words ("link", "price", "how", "send") so you automate intent-driven comments without spamming every reply.
Public Reply + Private DM
Post a visible comment reply ("Sent you a DM!") and simultaneously send a personalized DM. Your post engagement metric improves while the real conversion happens privately.
Send Links, Resources, or Offers
Your DM template can include URLs, product links, freebie downloads, or coupon codes. Since it's a DM, links are clickable, unlike comments where URLs are plain text.
Email Collection
After the first DM, Zaprep can prompt the user for their email address. Replies are parsed automatically and saved to your contacts list, turning a comment into a lead in your CRM.
Per-User Deduplication
Cooldown settings prevent the same person from receiving duplicate DMs if they comment multiple times. Configure one-time, daily, or N-day cooldowns per automation rule.
How the Instagram Comment Auto Reply Bot Works
Five steps from setup to your first automated DM: no developer required.
- 1
Connect Your Instagram Business Account
Click "Connect Instagram" in your Zaprep dashboard. You are redirected to Meta's official login page where you grant the required permissions (
instagram_manage_comments,instagram_manage_messages). Your password never touches Zaprep's servers. - 2
Create a Comment Automation Rule
Choose "Comment" as the trigger type. Optionally restrict by keyword (e.g., the comment must contain "price") or apply the rule to a specific post. Leave both blank to respond to every comment on every post.
- 3
Write Your DM Template (and Optional Public Reply)
Craft the DM message with merge tags like
{{first_name}}. Add an optional public comment reply, something like "Sent you the details!", to signal to other viewers that you're responsive. - 4
Set Cooldowns and Follow-Gate (Optional)
Enable a retrigger window to control how often the same person can receive the DM. On the Solo and Growth plans, activate the Follow Gate, only send the DM after the commenter follows your account, growing your follower count alongside your lead list.
- 5
Activate and Watch DMs Flow In
Toggle the rule live. The next comment matching your criteria triggers the DM within seconds. Watch your inbox and collected contacts grow in the Zaprep analytics dashboard.
Who Uses an Instagram Comment Bot?
Any creator or brand that gets comments and wants to convert them into conversations, leads, or sales.
Coaches & Course Creators
Post a Reel about your transformation results. Anyone who comments "how" or "program" gets an automatic DM with your course link and a short intake form. No manual follow-up required.
Commenters get the DM while they are still on your post, instead of hours later.
E-commerce & DTC Brands
Run a product drop post. Comments like "price?" or "where to buy" trigger an instant DM with the product link, current promo code, and a note about limited stock. Capture purchases while intent is hot.
Combine with email collection to retarget non-purchasers via email.
Agencies & Service Businesses
Share a case study or client result. Comments asking "how do I start" or "do you take clients" auto-receive a DM with your intake link or discovery call booking URL. Scale outreach without hiring a VA.
Manage multiple client accounts on the Growth plan (up to 5 accounts).
Musicians & Artists
Release a teaser post. Commenters who ask "where can I stream this?" or "link?" get an immediate DM with your Spotify, Apple Music, or merch store link. Drive streams from Instagram without a link in bio.
Real Estate Agents
Post a listing walkthrough. Any comment asking about price, availability, or showings triggers a DM with the listing URL and a calendar booking link. Qualify leads while you sleep.
Is an Instagram comment bot safe? Official API vs. password bots
Many comment bots log into your account with your password and mimic human taps inside Instagram, which is the kind of activity Meta's systems look for. Zaprep connects through the official Meta Graph API instead. Here is how the two approaches differ.
| Zaprep (official Meta API) | Scraping / login-sharing bots | |
|---|---|---|
| How it connects | Instagram Business Login (OAuth). Your password never reaches Zaprep | Stored password, session cookies, or a headless browser |
| How it detects comments | Meta's real-time webhooks | Repeatedly reloading your posts |
| What it can do | Public comment reply + private DM, keyword filters, per-post rules | Varies, often generic replies, likes and follows |
| Account-safety approach | Follows Meta's messaging rules (24-hour window, one private reply per comment) | Imitates human activity, which Meta actively detects |
| Reliability | Unaffected by Instagram app or website redesigns | Breaks when Instagram changes its interface |
| Cost | Free plan; Solo $5.99/mo; Growth $14.99/mo | Usually a paid subscription |
4 checks before you connect any comment bot
- Does it ask for your Instagram password? If yes, walk away. Official tools send you to Instagram's or Facebook's own login screen and never see your password.
- Does it act only on your own posts? A bot that comments on strangers' posts, likes in bulk or follows accounts is doing inauthentic activity, not answering your audience.
- Does it follow Meta's messaging rules? It should only message people who commented or messaged you first, send one private reply per comment, and stay inside Meta's messaging windows.
- Can you remove its access at any time? Apps connected through Meta's official login can be removed from your Instagram or Meta account settings, which ends their access.
Comment automation done right
Zaprep answers the people who engaged with you first. Here is what it leaves out on purpose, so your replies read as service, not spam.
✗Comment on other people's posts
Posting generic comments across strangers' posts or hashtags is spam, and it is what most "instagram comment spam" complaints are about.
✗Auto-like or mass-follow
Liking and following accounts in bulk to farm attention is inauthentic activity, not customer engagement.
✗DM people who didn't engage
Cold-messaging users who never commented, messaged, or replied to you ignores the conversation-first rules Meta sets for business messaging.
✗Flood the same person
Sending repeat DMs every time someone comments again feels robotic. Use a cooldown so each person gets the message once.
Zaprep only replies to comments left on your own posts and DMs sent to your own account, and each rule can run once per person or on a cooldown you choose.
Zaprep vs. Other Instagram Comment Auto Reply Tools
Not all comment automation tools are created equal. Here's how Zaprep compares on the factors that matter most.
| Feature | Zaprep | Scraper-Based Tools | Manual DMs |
|---|---|---|---|
| Official Meta Graph API | ✅ Yes | ❌ No | ✅ Yes |
| Real-time comment detection | ✅ Webhooks | ⚠️ Polling | ❌ Manual |
| Keyword filtering | ✅ Yes | ⚠️ Limited | ❌ No |
| Public comment reply | ✅ Yes | ⚠️ Some | ✅ Yes |
| Email collection from DM | ✅ Built-in | ❌ No | ❌ Manual |
| Follow-gate before DM | ✅ Solo and Growth | ❌ No | ❌ No |
| Per-user deduplication | ✅ Yes | ⚠️ Varies | ❌ No |
| Account-safety approach | ✅ Follows Meta's messaging rules | ❌ Mimics human activity | ✅ Manual |
| Password security | ✅ OAuth only | ❌ Password shared | ✅ Safe |
| Multi-account support | ✅ Up to 5 | ⚠️ Limited | ❌ One at a time |
Need an alternative to a specific tool? See the full Instagram automation feature list.
Simple Pricing for Every Stage
Start free, upgrade when you grow. All plans use the official Meta Graph API.
Free
$0/mo
1 account (Instagram or Facebook)
- ✓ 1,000 Active Contacts/month
- ✓ Comment-to-DM automation
- ✓ Keyword triggers
- ✓ Public comment replies
Growth
$14.99/mo
5 accounts (Instagram or Facebook)
- ✓ 15,000+ Active Contacts/month
- ✓ Everything in Free
- ✓ Follow Gate (DM after follow)
- ✓ Unlimited email collection
- ✓ AI replies: 200/month
Upgrade, downgrade, or cancel anytime: no contract. Only need one account? Solo is $5.99/mo for 5,000 Active Contacts. Full pricing details →
Frequently Asked Questions
Common questions about Zaprep's Instagram comment auto reply bot.
Is Zaprep an official Instagram comment bot or does it use scraping?
Zaprep uses the official Meta Graph API. There is no browser automation, no scraping and no session hijacking. Your account connects through Instagram Business Login (OAuth), and every action goes through Meta's official endpoints. Every reply follows Meta's messaging rules (24-hour window, one private reply per comment).
Is there a free Instagram comment bot?
Yes. Zaprep's Free plan is $0 with no time limit: 1 account and 1,000 Active Contacts a month, including keyword triggers, public replies and DMs. Follow Gate, email collection and higher volume are on Solo ($5.99/mo) and Growth ($14.99/mo).
Can a comment bot get my Instagram account banned?
Bots that log in with your password and automate taps inside the app carry real risk, because Meta works to detect that activity. Tools built on the official API, like Zaprep, act only through permissions Meta grants and follow its messaging rules. Your content and replies still have to follow Instagram's Community Guidelines.
What happens when someone comments on my Instagram post?
When a comment arrives, Instagram sends a real-time webhook to Zaprep. Zaprep checks your automation rules, including any keyword filters, and if the comment matches it sends a DM to that commenter. Across Zaprep accounts, the median time from comment to reply is about 6 seconds.
Can I filter which comments trigger a DM?
Yes. You can require specific keywords in the comment body (e.g., "link", "info", "price"), match by post, or apply to all comments on all posts. You can also set per-user cooldowns so repeat commenters do not receive duplicate messages.
Does the Instagram comment auto reply bot also send a public comment reply?
Yes. Zaprep supports two actions per rule: a public comment reply (e.g., "Check your DMs!") and a private DM with your full offer, link or resource. Your post looks active while the real conversation moves to the inbox.
Which Instagram account types are supported?
Zaprep works with Instagram Business and Creator accounts. Personal accounts are not supported, because Meta's API only gives access to comments and messages on professional accounts. Switching a personal account to Creator is free and takes a minute in the Instagram app. Facebook Pages are supported too.
Related pages
- Instagram comment auto-reply tool
Full feature tour: public replies, DMs, reply variations and per-post rules.
- Step-by-step: how to automate Instagram comments
Set up your first comment bot rule in about five minutes.
- Instagram auto reply message examples
Ready-made replies and DMs for your bot to send.
Ready to Turn Every Comment Into a Conversation?
Set up your first comment-to-DM automation in under 5 minutes. No credit card, no developer, no scraping, just the official Instagram API working for you.
Free plan available · No credit card required · Upgrade anytime