What "unlimited" is measuring
InstantDM sells unlimited automation. Their own comparison table puts a number on it, and that number is Meta's, not theirs. Here's what it means for your account.
InstantDM is a close competitor on shape: Instagram-first, flat monthly pricing, a free-forever tier, and the same comment-to-DM and follow-for-link mechanics. If you are choosing between us, you are choosing between two tools that do broadly the same job.
Two things are worth getting exactly right before you decide.
The price, and we are on the wrong side of it now. Their pricing page loads with the yearly toggle already selected, so the $9.99 you see first is the annual-billing rate; month-to-month, Legend Pro is $12 and Trendsetter is $29.99. inDM Growth is $14.99 month-to-month. So on the paid plan they are cheaper than we are, on either billing term, and this page is not going to bury that. Where the comparison turns is the free tier and the shape of "unlimited", below.
The word "unlimited". Legend Pro is marketed as unlimited automation, and their own comparison table qualifies it as "Unlimited (750/hr)". That 750 an hour is not an InstantDM limit. It is Meta's published ceiling on private replies, the same one every tool on the official API lives under. It is a fair thing to advertise. It is just worth understanding that it describes the platform, not the product, and that no tool can raise it.
Why creators switch
A free plan with no message count
InstantDM's free tier is 500 DMs a month. inDM's is unlimited, with every automation type, unlimited keywords, the follow and email gates, automation and audience analytics and the inbox, on one connected Instagram account. If the free plan is where you are deciding, this is not a close comparison.
A monthly price that is actually monthly
InstantDM's lower figure is its yearly rate; month-to-month, Legend Pro is $12. inDM Growth is $14.99 a month, $4.99 for your first, with no annual plan behind it, so nothing is asked of you up front and the price on the page is the price you pay.
Limits we document rather than market
Instagram's own ceiling is roughly 750 private replies an hour, and it applies to every tool on the official API. We publish what that means for your account instead of describing it as a product feature.
Feature by feature
| Feature | inDM | InstantDM |
|---|---|---|
| Comment-to-DMSomeone comments a keyword on a post or reel; they get your link in a DM, instantly. | Yes | Yes |
| Story repliesA reply to your story triggers an automatic DM back. | Yes | Yes |
| Keyword DMsA DM containing a keyword gets an instant, useful answer. | Yes | Yes |
| Follow gateAsk for a follow before the link is delivered. Every link grows your following. | Yes | Yes Follow-for-link on Legend Pro and above |
| Email captureCollect an email address inside the DM thread, attached to the contact. | Yes Asks in the thread, saved to the contact | Yes Collect email in DM |
| Live DM previewSee the exact DM (bubbles, buttons, link card) before anything goes live. | Yes Always on screen while you build | Partial Verify current builder on their site |
| Built on your real contentAutomations attach to actual posts, reels, and stories, not an abstract flowchart. | Yes The spine of the product | Yes |
| Unified inboxEvery conversation your automations create, in one view. | Yes | Partial Verify current inbox scope on their site |
| ContactsEvery engaged person becomes a tracked contact (leads, hot leads, customers, superfans), exportable anytime. | Yes Light by design, not a sales CRM | Yes Unlimited contacts on paid tiers |
| AnalyticsTrigger rate, DM click-through, keyword performance, best hours to post. | Yes Trigger rate, keywords and hours on both plans; DM click-through on Growth | Yes Advanced dashboards on Trendsetter |
| Predictable pricingYou can say what next month costs before the month happens. | Yes Nothing is metered, $0 or $14.99, whatever your volume does | Partial "Unlimited" is qualified as 750/hr in their own comparison table |
| Free foreverA free plan that renews every month, not a trial that runs out. | Yes Unlimited messages and every automation type, on one connected Instagram account | Yes 500 DMs per month |
| Follow-up messageA second DM hours after the first: a thank you, a nudge to follow, or the link again. Optionally only to the people who never opened it. | Yes 30 minutes to 20 hours later, with an option to skip anyone who already clicked; on Growth | Yes Follow-up Messages, on the higher plan |
| Running many client accountsHow the plan grows past one Instagram account, for an agency or a team running several brands. | Yes Up to 5 on Growth, 15 on Agency Lite ($39 a month), 30 on Agency Pro ($99 a month) then $3 each. Clients connect from a link you send | Partial Up to 10 accounts on Multi Pro at $99 a month; no public plan above 10 (read 9 Oct 2026) |
Feature support as of August 2026. Something changed? Tell us and we'll fix it.
The pricing math
Free forever: $0, no card, unlimited messages, every automation type, unlimited keywords, the follow and email gates, automation and audience analytics, the unified inbox and export. Nothing is metered on either plan, so there is no allowance to forecast and nothing to run out of. Free connects one Instagram account. Growth removes app branding, connects up to 5 Instagram accounts, takes the limit off how many automations you keep, carries multiple links in one automation, sends a follow-up message hours after the first, lets an automation wait for a post you haven't published yet, broadcasts one message to your audience, opens the workspace to your team, and shows you who clicks your links and the countries they came from, at $4.99 for your first month, then $14.99 a month. inDM bills in USD at the same price wherever you are. These are month-to-month prices. There is no annual plan, so there is no discounted rate to compare against the one on the page.
Flat tiers, checked 2026-08-14. Free forever: 500 DMs a month, Reels and Story automation, unlimited posts. Legend Pro: $12/mo month-to-month, or $9.99/mo billed yearly: marketed as "Unlimited Automation", qualified in their own comparison table as "Unlimited (750/hr)", with unlimited contacts, follow-for-link and email collection. Trendsetter: $29.99/mo month-to-month, or $24.99/mo billed yearly: "Truly Unlimited", plus advanced safety mode, viral mode, follow-up messages, advanced dashboards and API access. Yearly billing gives 2 months free. Their pricing page loads with the yearly toggle pre-selected, so the lower figures are what a quick look captures. USD only.
Compare the same billing term or the comparison is meaningless, and then accept the answer. Month-to-month: InstantDM Legend Pro $12 against inDM Growth $14.99, so they are cheaper by $3. Annual: their $9.99 against our $14.99, cheaper by $5, though theirs asks for a year up front and we do not sell an annual plan at all. Neither figure moves with volume any more: their Legend Pro is "unlimited" bounded by Meta's 750/hr, and ours is unlimited with no stated bound, so at the paid tier this is a $3 question rather than a modelling one. The free tiers are where the two genuinely differ: 500 DMs a month there, unlimited here, with every automation type on ours. Figures as of 2026-08-14 for InstantDM and 2026-10-12 for inDM.
Their pricing, from the source: InstantDM's pricing page (checked August 2026).
Where InstantDM is genuinely strong
Where InstantDM is the stronger pick:
- API access and webhooks. Their Trendsetter tier ships an API with send-message and comment endpoints. inDM does not publish one, so if you want to wire automations into your own stack, they can and we cannot.
- A lower paid price. Legend Pro is $12 month-to-month and $9.99 billed yearly, against Growth at $14.99. If the paid tier is where you are deciding, theirs costs less on either billing term.
- Viral-mode tooling. They market dedicated safety queues and a viral-mode handler as named features. We pace sends under the same Meta limits, but we do not sell it as a distinct product surface.
One thing to check yourself rather than take from either of us: their blog states Instagram allows 5,000 DMs per hour. That conflicts with the roughly 750 private replies per hour we sourced directly from Meta's own documentation. We are confident in our number and we have shown our source, but it is their claim, and you should verify both.
What is InstantDM?
InstantDM is an Instagram-first DM automation tool. It runs comment-to-DM, Reels and Story automation, follow-for-link gating and email collection, on flat monthly tiers with a free-forever plan underneath. In shape it is one of the closest competitors to inDM in this set: same platform, same core mechanics, same flat-plan instinct.
Which means the comparison comes down to details, and two of them are easy to get wrong.
The price, compared on the same terms
Their pricing page loads with the yearly toggle already selected. That is not a trick; plenty of sites default to the discounted view. But it means the first numbers you see, $9.99 and $24.99, are annual-billing rates, not monthly ones.
Checked 2026-08-14, month-to-month:
- Free forever: 500 DMs a month, Reels and Story automation, unlimited posts.
- Legend Pro, $12/mo ($9.99/mo billed yearly). Unlimited automation, qualified as 750/hr. Unlimited contacts, follow-for-link, email collection.
- Trendsetter, $29.99/mo ($24.99/mo billed yearly). Truly unlimited, advanced safety mode, viral mode, follow-ups, advanced dashboards, API access.
Yearly billing gives two months free, which is what reconciles $12 to $9.99 and $29.99 to $24.99 exactly.
inDM Growth is $14.99 a month, month-to-month, for unlimited messages ($4.99 for the first month). We do not sell an annual plan, so there is no discounted rate to compare against. The price on the page is the price. Against their month-to-month $12 we are $3 more expensive; against their annual $9.99, $5 more, though ours asks for no commitment. What the extra buys on our side is up to 5 connected Instagram accounts on one plan.
On the free tiers: unlimited messages here, 500 a month there, and ours includes every automation type, unlimited keywords, the follow and email gates, automation and audience analytics and the unified inbox. Ours asks for one connected Instagram account; theirs asks for a 500-message ceiling.
What "unlimited" is actually measuring
Legend Pro is marketed as Unlimited Automation. Their own comparison table qualifies it: "Unlimited (750/hr)".
That number is worth understanding, because it is not really InstantDM's.
Instagram's Graph API bounds private replies at roughly 750 per hour per account. It is Meta's ceiling, it applies to every tool built on the official API, and no product can lift it, we documented it from Meta's own docs on 2026-08-05. So "unlimited, 750/hr" is an accurate description of what the platform permits, restated as a plan feature.
There is nothing wrong with advertising it that way. But it does mean the 750 an hour sits over every tool on the official API, ours included, and no plan from anyone buys past it. What differs is how each tool describes it.
Worth flagging one conflict so you can check it yourself: their blog states Instagram allows 5,000 DMs per hour. That does not match the roughly 750 private replies per hour in Meta's documentation. We have shown our source; theirs is their own. Verify before you plan capacity on either number.
How inDM differs
No meter. The free plan runs unlimited messages with every automation type, unlimited keywords, the follow and email gates, automation and audience analytics, inbox and contacts, no card. Growth adds no volume. It removes app branding, connects up to 5 Instagram accounts, and shows you who opened the links you sent and the countries they came from, three of the things it adds.
Messages and contacts are counted on neither plan. For more than 5 accounts in one workspace, Agency Lite holds up to 15 for $39 a month, and Agency Pro holds 30 for $99, then $3 a month for each one after.
Which should you pick?
Choose InstantDM if you want API access and webhooks, or if $12 month-to-month against our $14.99 decides it, on the paid tier they are the cheaper tool and we would rather you heard it here.
Choose inDM if the free plan is where the decision is made, unlimited against their 500, or if you want up to 5 connected accounts on one plan and no annual commitment.
Both run on the same Meta API, under the same ceiling. How comment-to-DM automation works is the same three-step sequence on either.
Already using it?
Switch from InstantDM: what carries over, what doesn't, and what the move actually costs.
Questions, answered plainly
Is InstantDM $9.99 or $12?
Both, depending on billing term. Their pricing page loads with the yearly toggle pre-selected, so $9.99 is the annual-billing rate for Legend Pro. Month-to-month it is $12. Trendsetter is $24.99 yearly and $29.99 monthly. inDM Growth is $14.99 month-to-month with no annual plan offered, so on the paid tier they are cheaper either way. Checked 2026-08-14.
Is InstantDM's unlimited plan really unlimited?
Their own comparison table qualifies Legend Pro as "Unlimited (750/hr)". That 750 an hour is Meta's published ceiling on private replies, which applies to every tool on the official Instagram API, including inDM. So it describes the platform's limit rather than a product one, and no tool can raise it.
Which has the bigger free plan?
inDM, and not narrowly, unlimited messages against InstantDM's 500 a month. Ours includes every automation type, unlimited keywords, the follow and email gates, analytics and the unified inbox, with no card required. It connects one Instagram account, and app branding removal sits on Growth.
Can Instagram really send 5,000 DMs an hour?
Not according to Meta's documentation. InstantDM's blog states 5,000 per hour; the figure in Meta's own docs is roughly 750 private replies per hour per account, which is what we document and plan against. Check both sources before you size a campaign on either number.
Can I switch from ManyChat or another tool?
Yes. Disconnect isn't even required first: connect your Instagram to inDM, rebuild your key automations (most creators have three or four that matter), preview, and set them live. Conversation history doesn't transfer between tools, no tool can import another's, so export your contacts from the old tool for your records. The switch guides walk through the order of operations.
Is Instagram DM automation allowed?
Yes. When it runs through Meta's official Instagram API on a professional account, and only messages people whose own action invited it, like commenting a keyword or replying to a story. That's exactly how inDM works. What breaks the rules is different: unofficial apps that ask for your password, scraping, purchased engagement, and cold outreach to people who never engaged.