The cheapest Instagram comment-to-DM tools, compared by real monthly cost

Prices checked on October 29, 2026. The 1,000 and 10,000 columns are the cheapest month-to-month price that covers that many people with one private reply each. Where a tool publishes only a yearly price, the cell says so. We do not convert currencies. A follow gate can turn one person into two or three messages, which is covered below.

On a per-contact tool, the price follows the number of people, not the number of posts. A Reel that usually draws a few hundred comments can draw 10,000 in a day, and each new person you message is another billable contact that month.

ManyChat's Pro plan is $39/month for 2,500 active contacts, then $0.05 each. That path is $39 + 7,500 × $0.05 = $414 at 10,000 contacts. Business is cheaper for that volume: $99/month includes 7,500, then $0.025 each, so $99 + 2,500 × $0.025 = $161.50. A flat-fee plan in this table stays at $3, $10, $19, or $30. The per-contact bill is the one that moves. ManyChat says the final price depends on billing country and is shown before payment.

A follow gate asks someone to follow before the link goes out, so one person can receive two or three messages: the gate prompt, a reminder, and the DM with the link. On a tool that meters monthly DMs or automations, those extra messages count against the cap.

The 1,000 and 10,000 columns assume one private reply per commenter. If most automations use a gate, budget about two or three times the message volume on send-metered plans. Per-contact tools still count the person once. Replier does not meter interactions by message count under fair use, so a gated flow does not change the price.

Running several creators changes the question from price per month to price per account. Replier Studio is $49/month or $490/year and includes 10 channels. One channel is one Instagram account or one Facebook Page. Each extra channel is $5/month or $50/year, up to 40 extra channels on self-serve, with unlimited team members.

A per-contact tool bills every client account on its own, so a viral client moves that client's invoice. A flat price per channel is easier to forecast across a roster. The For agencies page works out Studio for 5, 10, and 25 clients.

Each link below was open on October 29, 2026. If a tool changes its pricing later, its own page is the source of truth. Volume columns use one private reply per commenter and the cheapest month-to-month plan that covers it, unless the only published paid price is yearly.

Replier: Creator is $10/month or $100/year (about $8.33/month), with unlimited interactions under fair use, so 1,000 and 10,000 commenters are both $10/month on month-to-month billing. The free plan is 100 interactions a month, which these volumes pass. These are the same list prices as our pricing page.

InstantDM: the free plan is 500 DM automations a month on 1 Instagram account, so 1,000 and 10,000 both need Legend Pro at $12/month month-to-month ($9.99/month billed yearly, $120/year), which lists unlimited automations up to 800 an hour and adds Facebook. The page says it is built on Meta's official API.

ReplyKaro: the free plan is 1,000 DMs a month, which covers 1,000 commenters at $0. 10,000 needs Starter at $3/month (₹99) for 30,000 DMs. The page says Facebook is priced separately, and that it connects through Meta's API. Its own page says the plan table was last reviewed on October 15, 2026; we read the live page on the date above.

LinkDM: the free plan is 1 Instagram account and 1,000 DMs a month, including Facebook DM automations, so 1,000 commenters are $0. 10,000 needs Pro at $19/month (up to 3 accounts and 25,000 DMs a month). Yearly Pro is $182, listed as 25,000 DMs per account per month.

CreatorFlow: the free plan is 500 DMs a month, so 1,000 needs Pro at $15/month (5,000 DMs per workspace; $12/month billed annually, $144/year). 10,000 on one workspace needs Growth at $30/month (10,000 DMs per workspace; $24/month billed annually). The pricing page counts Instagram accounts and does not list Facebook.

ReplyRush: the pricing page's plan data lists Free at $0 for 1,500 DMs a month, Lite at $10 for 7,500, Boost at $25 for 40,000, and MAX at $100 for 400,000, on Instagram and Facebook. 1,000 private replies fit Free. 10,000 needs Boost, because Lite stops at 7,500. Comment Auto Reply and Follow Gated DM are marked off on Free; ReplyRush's free-plan article says the private comment-to-DM still sends.

Inrō: free is 100 activated contacts a month. The billing article prices monthly Pro at €12.99 up to 500, €19.99 for 501–1,000, and €149.99 for 9,001–10,000, so 1,000 commenters are €19.99/month and 10,000 are €149.99/month. Annual Pro is €1,249/year and includes 10,000 activated contacts a month (the pricing page says 10,000+; the billing article describes a cap at 10,000). Prices stay in euros. Each Instagram account is its own subscription.

ManyChat: help-center list prices for the March 2, 2026 model, which the pricing page's overage row matches ($0.10, $0.05, and $0.025 a month). Free is 25 active contacts. At 1,000 contacts, Essential is $17 + 750 × $0.10 = $92, and Pro at $39 (2,500 included) is lower, so the column uses $39. At 10,000, Pro is $39 + 7,500 × $0.05 = $414, and Business is $99 + 2,500 × $0.025 = $161.50, so the column uses $161.50. ManyChat says the price depends on billing country and is confirmed before payment. Yearly prices are lower and are not the figure in the volume columns.

Meta Business Suite: free. One private reply per comment, within 7 days, from Meta's private-reply docs.