The Best Auto DM Tool
for Instagram

Liffio is an Instagram DM automation tool that sends personalised DMs automatically when someone comments a keyword on your post, reacts to your story, or messages you. No manual inbox work required.

Yes. Liffio has a free plan with no credit card required. It includes unlimited Instagram accounts, unlimited automated DMs, comment keyword triggers, and basic analytics.

Yes. Liffio connects through Instagram's official API using Meta's OAuth consent flow — your password is never shared — and sends every DM with a configurable 10–60 second delay so replies arrive at a natural conversational pace.

Yes. Instagram permits DM automation through its official API, which is part of Meta's developer platform. Tools that connect via the official API using OAuth — rather than scraping or using your password — are the path Instagram's platform policy allows. Liffio integrates exclusively through this official API using OAuth: you approve the permissions on Meta's consent screen when you connect, and you can revoke access at any time from your Instagram settings. Never passwords, scraping, or unofficial endpoints. The distinction matters practically: tools operating outside the official API — browser automation, credential scraping, or unofficial endpoints — work outside Meta's permitted use guidelines, which is where account risk comes from.

Comment-to-DM automation sends a direct message to someone automatically when they comment a specific keyword on your Instagram post or Reel. Here is how it works: you connect your Instagram account via the official API, choose a post, set a trigger keyword (such as LINK, PRICE, or GUIDE), and write a DM template. When any commenter types that keyword, the automation fires and sends your pre-written DM — after a short configurable delay of 10 to 60 seconds — without you doing anything manually. For example: you post a Reel about a digital product and tell viewers to comment FREE to get the download link. Every person who comments that word receives the link in their inbox automatically, even if you are asleep or offline. One limitation: comment-to-DM only fires on posts you explicitly enable it for. It does not apply to all posts on your account automatically.

Instagram's enforcement targets tools that access accounts by logging in with your password, simulating browser behavior, or using unofficial endpoints. The official Instagram API works differently. You authorize Liffio through Meta's own OAuth screen — the same login flow used by major apps like Hootsuite or Later. Your password is never entered into Liffio at any point, and Liffio never stores credentials. Meta issues an access token directly to Liffio, which you can revoke at any time from your Instagram settings under Apps and Websites. Liffio also adds a 10–60 second configurable delay between trigger and send, so each automated reply arrives at a natural conversational pace for the person receiving it rather than as an instant blast.

Yes. With keyword-trigger tools like Liffio, you can automate replies to incoming Instagram interactions such as comments on posts and Reels, story replies, and inbound DMs. Each automation type works through the same mechanism: you define a trigger condition (a keyword or a reply), write the message, and set a delay. When the trigger fires, Liffio sends the message automatically via Instagram's official API. For example: if you run a coaching business, you could set up a DM trigger so that anyone who sends you the word APPLY in a DM receives your application form link — without you checking your inbox. The delay is configurable between 10 and 60 seconds per automation, so replies arrive at a natural conversational pace for the recipient instead of landing the instant they comment.

Liffio. It has a free plan with no credit card required that runs comment-to-DM automation in production — not just as a demo. Paid plans start at $9/month. For comparison: since ManyChat's March 2026 pricing change, its free tier is capped at 25 Active Contacts per month, and paid plans start at $14/month for 250 contacts with per-contact overage fees as your audience grows. SendDM and LinkDM are simpler tools with focused feature sets; pricing varies. SuperProfile bundles bio-link storefronts with automation and prices accordingly. What makes Liffio structurally cheaper for Instagram-focused creators is that there are no per-contact fees. You pay the same $9/month whether you automate DMs to 100 people or 10,000 people. ManyChat charges based on how many people you interact with each month, which means a single viral Reel can trigger overage charges unexpectedly. The free plan includes unlimited Instagram accounts, unlimited automated DMs, comment keyword triggers, and basic analytics — enough to validate whether automation works for your use case before paying anything.

The best Instagram DM automation tool depends on your workflow. For creators, coaches, and brands who want comment-to-DM automation and story reply — with unlimited messages and no contact-based pricing — Liffio is built specifically for that use case. Tools like ManyChat offer broader multi-channel coverage (Messenger, WhatsApp, SMS) at higher price points. If your entire workflow is Instagram and you want simple pricing with unlimited DMs from the free tier, Liffio is the most direct fit.

Automated DMs increase engagement by responding to every comment and story reply — even at 3am, even when a Reel unexpectedly goes viral. Most manually managed accounts respond to 10-20% of comment-driven DM requests; automation responds to 100%. Higher response rates mean more link clicks, more lead captures, and more conversations started — which Instagram's algorithm rewards with further reach.

Yes — this is the primary commercial use case. Comment automation captures leads at the moment of highest intent: when someone raises their hand on your content. Liffio captures email addresses shared in the DM conversation automatically, and exports them to CSV. Creators and brands use this to build email lists, qualify prospects, and route buyers — all without leaving Instagram.