Zaprep reads every new comment on your posts and Reels, answers it publicly, and sends the commenter a private DM with your link, offer or question. Median reply time is about 6 seconds, around the clock.
Built with security & compliance in mind
Zaprep's comment auto-reply tool watches the comments on your Instagram posts and Reels through Meta's official webhooks. When a comment matches a keyword you set, such as LINK, PRICE or FREE, Zaprep posts a public reply under it (for example "Sent, check your DMs") and sends the commenter a private DM with your link, discount code or lead magnet. You can rotate several reply variations so answers never look copy-pasted, scope a rule to one post or to every post, and on paid plans require a follow before the DM is delivered (Follow Gate, Instagram only). It works on Instagram Business and Creator accounts and on Facebook Pages, through the approved Meta API rather than scraping or password-based bots.
Setup
Four steps from sign-up to your first automated comment reply flowing in real time.
Authenticate via Meta OAuth in under 60 seconds. Zaprep links to your Instagram Business or Creator account and starts listening for comment events immediately.
Pick a post (or apply to all posts), enter the keyword(s) that should fire the rule, and write the DM you want to send. Add a follow gate or email collection step if needed.
Flip the rule live. Every time someone comments your keyword, Zaprep fires an instant personalized DM, day or night, on every qualifying comment.
Monitor total triggers, messages sent, leads collected, and reply rates from the analytics dashboard. Adjust keywords or DM copy any time.
Why it works
Speed, precision, and lead capture: the three things that turn a comment section into a conversion machine.
Zaprep processes comment webhooks in real time. Your follower gets the DM within seconds of posting their comment, while their attention is still on your post. Slow replies kill conversions; Zaprep never sleeps.
Only fire for comments that matter. Set exact keywords so casual comments do not trigger your flow. Run "GUIDE" on an educational post and "DEAL" on a product post: each rule is fully independent and post-specific.
After sending the DM, chain an email collection step. Zaprep asks for their email mid-conversation, stores it in your Contacts dashboard, and lets you export any time. Every comment becomes a potential opt-in.
Features
Zaprep covers the full comment-to-DM workflow, from keyword matching and follow gates to lead collection and inbox management.
Fire a DM to any user who comments on your post: specific keyword or any comment.
Attach a rule to one post so only that post's comments trigger the flow.
Add multiple trigger words to a single rule. Match on "LINK", "INFO", or "SEND" all at once.
Optionally require the commenter to follow your account before the DM is delivered.
Insert the commenter's username or their comment text directly into the message body.
After the initial DM, Zaprep asks for their email and stores it as a lead contact.
Control how often the same person can trigger: once ever, every N days, or unlimited.
All DM threads appear in one inbox. Jump in manually at any point in the conversation.
Real use cases
Ask followers to comment "ENTER" for a chance to win. Zaprep auto-DMs every entrant with their confirmation and next steps. You wake up to a fully processed entry list: no manual DMs, no missed entrants, no copy-paste fatigue.
Post "Comment LINK for the full guide." Every comment triggers an instant DM with your URL. The post still gets engagement (good for the algorithm), and your audience gets the link immediately without navigating away.
Offer a free checklist, template, or discount via comments. Zaprep sends the DM, then asks for their email inside the conversation. You end up with an opted-in lead and the asset delivered, all without leaving Instagram.
Drop a product post with "Comment BUY for the direct link." Every interested commenter gets an instant DM with your product URL or waitlist sign-up, while the post is still trending and their purchase intent is highest.
Replying to hundreds of comments by hand does not scale. By the time you answer comment number 50, comment number 1 has moved on. Zaprep sends the DM while the post is still fresh in the commenter's mind: across Zaprep accounts the median reply time is about 6 seconds, and more than 400,000 messages went out in the last 30 days. Moving from ManyChat? Read our ManyChat alternative comparison or browse the full Instagram automation feature list.
Every unanswered comment is a missed conversation. Zaprep turns your best posts into automated lead funnels, instantly and around the clock.
FAQ
When someone comments a keyword you specify on your Instagram post, Zaprep instantly sends them a personalized DM from your account. It uses the official Meta Graph API and Instagram webhooks: no scraping, no third-party bots. You choose the keyword, write the DM, and Zaprep handles the rest 24/7.
Yes. When you create a comment automation rule in Zaprep, you can attach it to a specific post using the post picker, or apply it to all future posts on your account. Post-specific rules are perfect for giveaways, product launches, and limited-time offers.
No. Zaprep operates exclusively through the official Meta Graph API and Instagram Webhooks: the same approved infrastructure used by enterprise marketing platforms. There is no scraping, no session cookies, and no unofficial automation. Your account stays compliant with Instagram platform policies.
You can trigger on any word or phrase: common examples include "LINK", "INFO", "SEND", "YES", "FREE", "DETAILS", or product names. You can also configure the rule to fire on any comment regardless of keyword. Multiple keywords can be added to a single rule.
Yes. Zaprep includes a follow gate feature. When enabled, commenters who do not yet follow your account receive a polite prompt to follow first. The instant they follow, Zaprep automatically delivers the original DM, turning the automation into a follower growth engine as well.
More questions? See pricing and plan limits or explore all automation features.
A 6-step setup guide with a pre-launch test checklist.
What a safe comment bot is, what the free plan covers, and why password bots put accounts at risk.
Copy-ready DM and public comment reply templates to paste into a rule.
Free plan. No credit card. Set up your first comment auto-reply in under 5 minutes.