PostEngage vs respond.io

respond.io prices a team. We price a sentence.

One is a shared inbox for a company that answers customers everywhere at once. The other answers Instagram and nothing else. Here is what respond.io's pricing page says, what ours says, and the cases where the bigger tool is plainly the right call.

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Where respond.io wins

respond.io is the better buy the moment more than a few people answer messages, or messages arrive anywhere other than Instagram. Their pricing page sells team inboxes with five or ten users included, broadcasts, workflow automation, AI Agents, reporting, Zapier and Make integrations, a developer API, SSO and multiple workspaces, and we ship none of those in any form.

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
respond.ioStarter $79/mo billed yearly, $99 monthlyPostEngageFree; Lite $4/mo for unlimited DMs
Free plan
respond.ioNone; 7-day trial, no cardPostEngageUnlimited comment replies, 1,000 DMs/30 days, 100 AI credits
What you pay for
respond.ioUsers and Monthly Active ContactsPostEngageAI replies written, one credit each
Users included
respond.io5 on Starter, 10 on Growth and AdvancedPostEngage1 seat; 3 on Studio
Contact overage
respond.io$12/100 Growth, $15/100 AdvancedPostEngageNone; contacts are unlimited
AI replies
respond.io5,000 AI credits on StarterPostEngage3,000/month on Creator, 8,000 on Studio
Channels
respond.ioWhatsApp, TikTok, IG, Facebook, email, callsPostEngageInstagram only
Held replies
respond.io—PostEngageSixteen checks, reasons shown

Read from respond.io/pricing on .

We make one of these two products, so read this the way you would read any comparison written by an interested party. What we can do is put the concessions first and source every claim about the other side to a page you can open yourself.

respond.io is aimed at a company. Its pricing page — checked on 21 October 2026 — describes a product with a reach ours does not attempt, and for a lot of businesses that reach is the whole decision.

Start with the part where we lose

On their pricing page, not on ours

A shared inbox several people work out of, with five or ten users included. Broadcasts, workflow automation, AI Agents, advanced reporting, Zapier and Make integrations and a developer API from Growth up. Webhooks, HTTP requests, SSO, multiple workspaces and contact masking on Advanced. Channels well beyond Instagram, including WhatsApp, TikTok, calls and email.

What we do instead

Instagram comments and DMs through the official Graph API, and nothing else. One seat on most plans, three on Studio. No broadcast, no sequence, no workflow canvas, no analytics product, no second channel of any kind.

That is not a preamble before the real argument. For a company with a support team it is the argument, and if you are that company you can stop reading and go set up respond.io with a clear conscience.

The meter is the actual difference

Everything else here follows from what each pricing page says it counts.

respond.io's, checked on 21 October 2026, counts users first and contacts second. It puts the idea as paying only for the contacts you talk to, and defines an active contact as anyone you interacted with through calls or messages during the billing month. Read the billing toggle before you read the price. The page opens on yearly billing, where Starter is $79 a month with five users, Growth $159 with ten and Advanced $279 with ten; billed month to month the same three are $99, $199 and $349. Enterprise is priced on application. Extra users are listed at $12, $20 and $24 a month. Their compare table lists Growth and Advanced as starting with 1,000 Monthly Active Contacts, with overage at $12 per 100 on Growth and $15 per 100 on Advanced, and AI credits at 5,000 on Starter rising to 10,000, 20,000 and 40,000. Broadcasts, workflows and AI Agents start at Growth. There is a seven-day trial with Growth features for five users and 1,000 contacts, broadcasts excepted, and no card.

Ours counts one thing, mostly. One credit is one AI-written reply. A comment reply sent from a template you wrote costs nothing, however many people it goes to, on every plan. A templated DM costs nothing too, up to Free's 1,000-every-30-days cap, which Lite removes for $4 a month. Creator at $12 a month adds 3,000 AI replies, the Inbox and the Leads list; Studio at $29 adds 8,000, five accounts and three seats. The free tier is 100 credits with no card, and packs are $3.99 for 1,000 credits, $14.99 for 4,500 and $39.99 for 12,000. Every figure is on our pricing page.

One meter counts the people on your team and the people they spoke to. The other counts the sentences a model had to write.

A diagram separating templated replies, which are free, from AI-written replies, which spend one credit each
The split matters more than the price: if four answers cover most of your inbox, most of your volume never touches a credit.

Where each shape hurts

Neither is a trick. They break in different places, and which one breaks for you is knowable without a spreadsheet.

A seats-and-contacts meter is comfortable when several people answer messages all day across several channels, because the alternative is several tools and no shared history. It is uncomfortable when one person answers one channel, because the floor is a five-user price and the team is you.

A per-reply meter is comfortable when your inbox repeats itself, because repetition is exactly what a free template absorbs. It is uncomfortable when every reply genuinely needs composing from scratch, and it is useless the moment revenue arrives somewhere we cannot see.

Neither of us can change the platform

Both products reach Instagram through Meta's official API, so both live in the same box. You can reply to a DM within 24 hours of that person's last message and to a comment within 7 days. Nobody sells an exemption from that, and a tool implying otherwise is not describing the official API. The whole shape of it is in is Instagram DM automation safe.

What differs inside the box is what a tool refuses to do. Ours runs sixteen checks in a fixed order before anything sends — 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 — and the first failure stops the send with its reason recorded in Activity, so a reply that did not go out is something you can read rather than a mystery. Out of credits is a refusal like any other, and the fallback is your own template rather than silence.

Decide it in a fortnight, not in a spreadsheet

  1. 01

    Count the people who answer

    If the answer is a team, the comparison is already over and respond.io wins it. A real team inbox is the thing we do not sell.

  2. 02

    Count the channels revenue arrives on

    If any of them is WhatsApp, email or a phone call, same answer. We can only see Instagram.

  3. 03

    If both answers were small, give us one surface

    Comments on Reels, or story replies. One trigger, so nobody gets two answers and you can read every reply we produced.

  4. 04

    Paste in your four most common answers

    Templated sends cost nothing, so this covers the bulk of your volume at no running cost and gives the AI fallback something to fall back to.

  5. 05

    Read twenty replies end to end

    Would you have sent those? No dashboard answers that question, and it decides the whole thing.

The honest summary is that these two products are aimed at different buyers rather than at each other. respond.io sells a company the ability to answer everyone everywhere with a record of who said what. We sell one person their evenings back on one channel.

If you want the longer list of options rather than a head-to-head, it is in respond.io alternatives, and if the tool you are really weighing us against is ManyChat, start with the ManyChat alternative page. How we source every claim on pages like this one is set out in our methodology.

Compared with the others

Questions people ask

What is a Monthly Active Contact on respond.io?
Their pricing page, checked on 21 October 2026, puts it as paying only for the contacts you talk to, and defines a Monthly Active Contact as anyone you interacted with through calls or messages during the billing month. Their compare table lists Growth and Advanced as starting with 1,000 of them, with overage at $12 per 100 on Growth and $15 per 100 on Advanced.
Does PostEngage charge per seat?
Not separately. Seats come with the plan: one on Free, Lite and Creator, three on Studio. Nothing is metered per contact or per conversation. One credit buys one AI-written reply, comment replies sent from a template you wrote are free and unlimited, and the free tier is 100 credits with no card.
Can PostEngage answer WhatsApp or email the way respond.io does?
No. Instagram comments and DMs through Meta's official Graph API, and nothing else. No WhatsApp, no Messenger, no TikTok, no email, no calls, and none of them is a roadmap item we are being coy about. If your customers reach you on more than one channel, this comparison ends here and respond.io answers it.
Which one should a solo creator start with?
Price the floor before anything else. respond.io's entry plan is listed at $79 a month billed yearly, or $99 month to month, and includes five users, which is sensible value for a team and a lot of money for one person who wanted Instagram replies handled. Our free tier costs nothing, Lite is $4 a month for unlimited DMs, and Creator is $12. If you are one person answering one channel, start at the cheaper floor and move up when a second channel appears.

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