DMFast or Linktree for sending links on Instagram?

Linktree’s help article on the feature, read on 6 October 2026, describes it like this. You connect a public Instagram account, choose posts or Reels, and decide whether any comment or only comments with your keywords trigger a DM. The DM carries text you write and a button with your own label, leading to a shop product or collection, one of your Linktree links, a custom URL or a Linktree Messaging prompt.

You can also set up to four public replies to post under the comments, and Pro and Premium add smart matching that catches misspelt keywords. The article does not mention Story replies, keywords sent by DM, Live comments, Facebook, a follow check or collecting emails.

DMFast replies under the comment and sends a first DM that is plain text and asks for a reply, such as “Reply YES and I’ll send it”. Once the person answers, the link card, buttons or a product carousel follow, and the conversation can go on: an email request, or on Pro a follow check and one reminder if they stop halfway.

The reply-first step asks the commenter for one short reply, but that reply is what opens Meta’s 24-hour window, the period in which a business may keep messaging someone. That window is what lets a tool send a second message, ask for an email or check a follow.

Beyond comments, DMFast answers replies and mentions on your Instagram Stories and keywords people send by DM, and it connects Facebook Pages, where comments and Messenger keywords are handled the same way. Its free plan counts people, not messages: 100 a month. Paid plans, from $9 a month, have no cap on people.

• Meta allows one private reply per comment, sent within 7 days of the comment.
• An Instagram account can send at most 750 private replies to comments an hour. DMFast stays under 700, and an “unlimited” plan on any tool sits under the same ceiling.
• Comments left during a Live can get a private reply only while that Live is still running.
• Linktree’s monthly DM counts and DMFast’s monthly people count are each product’s own limits, on top of Meta’s.

Linktree’s plans are built around the bio page. Free gives unlimited links, core appearance options and basic analytics. Starter adds link scheduling and more appearance controls and icons. Pro adds advanced analytics, priority links, SEO controls and monetisation tools, and Premium adds full analytics, commerce, marketing integrations, priority support and the option to remove Linktree’s branding.

Linktree’s pricing page shows prices in local currency, and they vary by region, so we haven’t listed them here; check linktr.ee/s/pricing for yours. Paid tiers can be billed monthly or annually, with a discount for annual. DMFast lists prices in US dollars: Free, then $9, $14 and $29 a month.

DMFast’s link-in-bio page has tracked links and shows a DMFast badge on Free, removed from Pro. In India the same page can sell digital products, lead magnets and 1-on-1 bookings through Razorpay, with no DMFast fee.

You don’t have to pick only one. Keep Linktree as the bio page and let DMFast handle the conversations: a DMFast link card can point at your Linktree page or straight at a product.

Tip: Don’t switch on Linktree’s auto-reply and a DMFast comment automation for the same post. Meta allows one private reply per comment, so only one tool can send the DM, and the commenter may see two public replies.