PostEngage vs Customers.ai

MobileMonkey is Customers.ai now, and Instagram is a side page

If you are looking for the Instagram and Messenger chatbot people used to call MobileMonkey, start with what the company's own site sells today: a Klaviyo retention platform up front, and an Instagram DM tool called InstaChamp linked from the footer.

Start freeSee pricingFree forever, no card.

Where Customers.ai wins

Customers.ai is the right buy for a Shopify store running Klaviyo that wants website-visitor identity resolution, audience building and email deliverability work, a category PostEngage has no product in. Its InstaChamp page also lists Facebook Messenger beside Instagram DMs, and we have no Messenger at all.

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
Customers.aiInstaChamp $19/mo ($9.95 offer)PostEngageFree; Lite $4/mo for unlimited DMs
Free plan
Customers.aiVIP gift (this week): 250 contactsPostEngageUnlimited comment replies, 1,000 DMs/30 days, 100 AI credits
What you pay for
Customers.aiContacts and sends; Klaviyo profilesPostEngageAI replies written, one credit each
Extra usage
Customers.ai$10 per 500 contacts, $5 per 1,000 sendsPostEngagePacks from $3.99 for 1,000 AI replies
Channels
Customers.aiInstagram DMs and Facebook MessengerPostEngageInstagram only
Main product
Customers.aiKlaviyo identity resolutionPostEngageInstagram comment and DM replies
Trial
Customers.ai7 days on the main platform, no cardPostEngageFree plan, no card; 14-day trial on Creator and Studio
Held replies
Customers.ai—PostEngageSixteen checks, reasons shown

Read from customers.ai on .

This page used to be mostly a redirection. It still is, partly, but the company's own site now shows two products, and only one of them is in our category.

People search for MobileMonkey because they remember a Facebook Messenger and Instagram chatbot builder and want to know whether it is still the thing to buy. Reading the company's own site on 21 October 2026: the brand is Customers.ai, the home page headline is about turning Klaviyo into a profit machine with identity resolution, and the named products are X-Ray for identity resolution, Alfred as an AI audience agent, Inboxer for email deliverability, a Meta CAPI server-side ads tracking product and a Klaviyo grader. The login and signup links still point at app.mobilemonkey.com, which is where the old name survives.

The pricing page, checked the same day, does not publish plan prices for any of that. It asks you to contact sales, and states that pricing is based on total Klaviyo profiles, every profile in the account including suppressed and unsubscribed ones. A seven-day free trial covers up to 500 visitor resolutions, with no card required.

The Instagram half, on its own page

Both the home and pricing pages carry two footer links, "DM Automation with InstaChamp" and "Social Media Autoresponders", and both go to customers.ai/instachamp. That page describes automated replies to every comment, Story mention, Story reaction and DM on Instagram, plus Facebook Messenger, through the Messenger API for Instagram.

Its plan table, read on 21 October 2026, lists a VIP edition offered as a this-week free gift, with 10 sends without Customers.ai branding, 250 contacts and DM responses for up to five keywords. Platinum is listed at $19 a month, shown at $9.95 a month as a this-week offer, with 500 unbranded sends and 1,000 contacts, unlimited keywords, conversation paths and email and phone capture in DMs. Extra sends are $5 per 1,000 and extra contacts $10 per 500.

If you came here for the Instagram half

Then the useful question is what you actually need a DM tool to do.

Most people who ask for a chatbot want something narrower than a chatbot: the same four answers, sent quickly, in their own words, without them being awake.

PostEngage does one thing. It answers Instagram comments and DMs through the official Instagram Graph API. You connect an account through Meta's own OAuth screen, and no password reaches us. An automation names a post, the keywords that should match with any-of or all-of logic, the negative keywords that should stop it, a public reply, a private reply, and whether the person is treated as a lead, which is off by default. The same builder adds first-time senders only, a time window and specific posts. Two buttons finish it: Try it, then Go live.

What it does not do, stated so you do not have to find out later: no Messenger, no website chat widget, no email, no SMS, no ads tracking, no WhatsApp or Telegram, no flow-builder canvas, no broadcasts, no sequences, no analytics product. Leads leave as CSV; there is no one-click CRM sync.

The pricing shape, since you are re-evaluating anyway

The two meters differ in what they count. InstaChamp's table counts contacts and sends, with a price for each block above the allowance. Ours counts AI-written replies. One credit is one AI-written reply. Comment replies sent from a template you wrote are free and unlimited, however many people receive them, on every plan. DMs are free too, up to Free's 1,000-every-30-days cap, which Lite removes for $4 a month. Nothing is metered per contact, per follower or per conversation, which matters most the week a post travels and the number of people in your inbox jumps.

Free tier: 100 credits, 1,000 DMs every 30 days, no card. Creator is $12 a month with 3,000 AI replies, and Studio $29 with 8,000. Packs: $3.99 for 1,000 credits, $14.99 for 4,500, $39.99 for 12,000. The full table is on our pricing page.

A diagram showing which replies are free and which spend a credit
If four questions cover most of your inbox, four templates cover most of your volume at no running cost.

Before anything sends

Sixteen checks run 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. The first failure stops the send and records its reason in Activity. Takeover is third, so once a human presses Take over in Inbox, or replies from Inbox, the automation stands down. Replying in the Instagram app does not pause it. Running out of credits is a refusal like any other, and the fallback is your own template rather than silence.

Both windows are Instagram's, not ours: a comment is answerable for 7 days, a DM for 24 hours after that person's last message. Nobody on the official API sells an exemption.

Re-evaluating an old setup

There is a particular kind of afternoon that brings people to a page like this: an automation that has been quietly running for two years, a tool whose website no longer looks like the tool you bought, and a suspicion that nobody has read what it sends in a long time.

If that is you, do one thing before shopping at all. Open the last twenty replies your existing automation sent and read them end to end. Half the time the answer is not "switch tools" but "this template stopped being true in March". A tool cannot fix a sentence you no longer mean, and moving that sentence to a new vendor moves the problem with it.

Then, if you do shop, judge on the awkward moments rather than the feature grid: what happens when the same person triggers twice, when a comment lands at 2am, when you jump into the thread yourself, and whether the tool can show you a reply it decided not to send. That last one separates the category more cleanly than anything on a pricing page.

Where to go next

If your business is a Shopify store where email is the money and the missing piece is knowing who visited, Customers.ai is aimed squarely at you and we are not. If you need Messenger answered alongside Instagram, InstaChamp lists it and we do not.

If the missing piece is that your Instagram comments go unanswered until lunchtime, start on the free tier, 100 credits and no card, and read getting started before you point anything at real people. If ManyChat is also on your list, the ManyChat alternative page covers that comparison. The rest of the field, with the date each page was read, is on the comparisons index, and Chatfuel is the other close comparison.

Compared with the others

Questions people ask

Is MobileMonkey still available?
The company trades as Customers.ai. Reading customers.ai on 21 October 2026, the login and signup links still point at app.mobilemonkey.com, so the lineage is visible on their own site. The home and pricing pages lead with identity resolution, an AI audience agent, email deliverability, Meta CAPI tracking and a Klaviyo grader, and the footer links to a separate page for Instagram DM automation called InstaChamp.
Does Customers.ai still do Instagram or Messenger automation?
Their InstaChamp page, read on 21 October 2026, describes autoresponders for Instagram comments, Story mentions, Story reactions and DMs, and for Facebook Messenger, built on the Messenger API for Instagram. It is linked from the footer rather than the main menu, and the blog posts listed on it date from 2021, so ask their team how actively it is developed before you rely on it.
What does Customers.ai cost?
On the InstaChamp page, read on 21 October 2026: Platinum at $19 a month, shown at $9.95 a month as a this-week offer, with 500 sends without Customers.ai branding and 1,000 contacts, then $5 per 1,000 extra sends and $10 per 500 extra contacts. A VIP edition is offered as a this-week free gift with 10 such sends and 250 contacts. The main pricing page publishes no plan prices; it routes to sales, prices on total Klaviyo profiles including suppressed and unsubscribed ones, and offers a 7-day trial with up to 500 visitor resolutions and no card.
What is the closest thing PostEngage does?
The Instagram half of InstaChamp. We reply to Instagram comments and DMs through the official Graph API and capture those conversations into a Leads list you can export as CSV. There is no Messenger, no website pixel, no visitor identification, no email sending, no Klaviyo integration and no ads tracking of any kind on our side.

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