PostEngage vs LinkDM

LinkDM counts every DM. We only count the written ones.

Two Instagram-first tools that send a DM when somebody comments a keyword, priced on opposite units. One counts messages leaving the building; the other counts the moments a model had to compose something.

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Where LinkDM wins

LinkDM is the better buy for an agency or a high-volume creator: their plans connect up to ten Instagram accounts, include Facebook comment automation, and add link-click analytics and branding-free DMs, and we top out at five accounts on Studio, with no Facebook and no analytics product.

Where PostEngage wins

Instagram only, done carefully. Templated replies are free and unlimited, and you pay one credit per AI reply in your voice. Every reply passes sixteen safety checks first.

Side by side

Starting price
LinkDMPro: $19/mo, or $182/yr billed yearlyPostEngageLite $4/mo (Free plan $0)
Free plan
LinkDM1 account, 1,000 DMs/mo, LinkDM brandingPostEngageUnlimited comment replies, 1,000 DMs every 30 days, 100 AI credits, no card
What you pay for
LinkDMDMs sent per month and accounts connectedPostEngageAI replies written (one credit each)
DM limits
LinkDM1,000 / 25,000 / 300,000 a monthPostEngage1,000 every 30 days on Free; unlimited from Lite
Public comment replies
LinkDMPro and upPostEngageFree and unlimited on every plan
Accounts included
LinkDM1 Free, 3 Pro, 10 Platinum+PostEngage1 on Free and Lite, 2 on Creator, 5 on Studio
Channels
LinkDMInstagram and FacebookPostEngageInstagram only
Held replies
LinkDM—PostEngageSixteen checks, reasons shown

Read from linkdm.com/pricing on .

Both of these products exist because of the same moment: somebody comments a word under a Reel, and a link should arrive in their DMs before they lose interest. What differs is the unit on the invoice.

What LinkDM meters

Their pricing page, checked on 21 October 2026, prices DMs sent per month alongside the number of connected accounts. The free tier is $0 with one Instagram account and up to 1,000 DMs a month, and includes DM automation on posts and Reels, story automations, Facebook automations, next-post automation and inbox starters. Pro is $19 a month for up to three accounts and 25,000 DMs a month, or $182 a year, and adds removing LinkDM branding, public comment auto-replies, lead capture, Rewind for back-sending DMs to eligible comments, and Live and ad automations. Platinum+ is $99 a month for up to ten accounts and 300,000 DMs a month, or $832 a year, adding a DM overflow queue, a high-volume rate limiter and early access to features. Enterprise is a custom arrangement with a dedicated account manager and API integration.

Their site describes the product as working with Instagram and Facebook, and states that the company is a certified Instagram third-party developer, a member of the Meta Business Partner programme, and that it exclusively uses the official Instagram APIs. Link-click analytics, branding-free DMs, email capture and flow automation for scheduled DM sequences are all listed features.

What we meter

One credit, one AI-written reply. Templated replies are free — send ten thousand of the same template and the credit balance does not move, because nothing there needed a model. Nothing is counted per contact, per follower or per conversation. Comment replies have no monthly ceiling on any plan; DMs on Free share a 1,000-every-30-days ceiling with AI-written DMs, gone entirely on Lite and up.

Free tier: 100 credits, no card. Packs: $3.99 for 1,000 credits, $14.99 for 4,500, $39.99 for 12,000. The monthly plans are on our pricing page.

Metered on DMs sent

Volume is the thing you buy. The bill is a function of how many messages left the building, whether each one was a stock link drop or a carefully composed answer.

Metered on drafts written

Composition is the thing you buy. A stock link drop costs no credit. A reply that needed reading the comment and writing something specific costs one credit.

If most of your sends are the same link with the same sentence attached, you are paying for postage that costs us nothing to provide — up to Free's 1,000-a-month DM ceiling, after which Lite at $4/month removes it.

That is the honest core of the comparison, and it cuts both ways. A creator whose automation is one keyword and one link, under 1,000 DMs a month, pays nothing on our side and a monthly figure on a metered-send plan from the first message. Go past 1,000 DMs a month on Free and the comparison changes: LinkDM's own free tier caps at the same 1,000 DMs a month, but removing their cap starts at $19; removing ours starts at $4. An account whose every reply needs individual composition burns credits on ours regardless of plan and would sit comfortably inside a flat send allowance elsewhere.

What they have that we do not

Three things, and they are not small.

Multi-account. Their tiers connect three and ten Instagram accounts; ours connect one on Free and Lite, two on Creator and five on Studio, with no client switcher and no white-label. An agency past five accounts should read that as disqualifying unless they intend to run separate workspaces.

Facebook. Their free tier lists Facebook automations. We do not touch Facebook, Messenger, WhatsApp or Telegram in any form.

Analytics. They list link-click analytics; we have no analytics product at all. We record what each automation did and why a blocked reply was blocked, which is a log, not a dashboard.

The Leads view, showing captured conversations and what is stored against each one
Leads leave as CSV. There is no one-click CRM sync here, and pretending otherwise would be the easiest lie on this page.

What we spent the narrowness on

Two things. The first is the gate: sixteen checks in a fixed order — kill switch, connection, takeover, auto-reply switch, complaint pause, window, dedupe, burst, bot loop, cooldown, quiet hours, account limits, rate budget, free DM cap, credits, content safety — with the first failure stopping the send and recording its reason. The rate budget is the one that matters on a post that travels: replies queue rather than flooding, and a reply that goes out forty minutes later is a correct outcome rather than a failure.

The second is voice. Drafts are grounded in replies the account owner actually wrote, and when a draft is not grounded in those words the template goes instead. The generated reply is the upgrade; the template is the floor.

How to test either one in a week

Do not migrate to find out. Give each tool one post and one keyword, keep them off each other's triggers so nobody receives two answers, and then break them on purpose.

Comment twice from a second account and check that only one DM arrives. Comment at midnight and check the reply waited for morning. Take over the thread and check the automation notices and stops. Then open twenty of the replies it sent and ask the only question that decides this: would you have sent those, to those people, in those words?

A tool that cannot tell you why it stayed quiet is a tool you will end up debugging by screenshot. Ask each one to show you a refusal, and see whether it can. There is more on this in the mistakes worth avoiding.

Picking

Count how many distinct sentences your automation actually needs to say, then count how many accounts you have to run. If the answer is "one sentence, ten accounts", LinkDM's shape fits and ours does not. If it is "a lot of different sentences, one account", ours does.

Start free either way: 100 credits and no card here, and the wider field is compared with dates attached if you would rather see everything before choosing. How these claims are sourced is in our methodology, if you are weighing us against the biggest name in the category, the ManyChat alternative page does that, and if account safety is the question underneath the question, read this first.

Compared with the others

Questions people ask

What does LinkDM cost and what is capped?
Their pricing page, read on 21 October 2026, lists a free tier at $0 covering one Instagram account and up to 1,000 DMs a month, Pro at $19 a month for three accounts and up to 25,000 DMs a month, Platinum+ at $99 a month for ten accounts and up to 300,000 DMs a month, and a custom enterprise option. Annual pricing was shown at $182 and $832 a year respectively. Removing LinkDM branding and public comment auto-replies both start on Pro.
Does PostEngage cap how many DMs I can send?
On Free, yes: 1,000 DMs every rolling 30 days, templated or AI-written — comment replies are never part of that cap, on any plan. Lite removes the DM cap entirely for $4/month with no AI replies included; Creator and Studio remove it too and add AI capacity on top. Credits are a separate meter again, spent only when the AI writes a new reply, and pace is also held by the rate budget, one of sixteen checks that runs before every send.
Do both work through the official Instagram API?
LinkDM states on its own site that it is a certified Instagram third-party developer, a member of the Meta Business Partner programme, and that it exclusively uses the official Instagram APIs. PostEngage is built on the official Instagram Graph API with accounts connected through Meta’s OAuth screen. Neither handles your password.
Can PostEngage manage several client accounts?
Not the way an agency tool does. LinkDM lists three connected Instagram accounts on Pro and ten on Platinum+, with LinkDM branding removable from Pro up. We connect one Instagram account on Free and Lite, two on Creator and five on Studio, with no client switcher, no white-label and no reseller pricing, so an agency running ten accounts should read that as a real limitation.

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