ChatAutoDM and UnlockDM both turn an Instagram comment into a DM through Meta's official API. The real difference is the bill. ChatAutoDM is a monthly subscription: ₹499 a month for unlimited contacts. UnlockDM charges once per campaign, and nothing in the months you do not run one.
The decision rule: if you automate most weeks, ChatAutoDM will almost always cost less. If you run a few launches or giveaways a year and want each one to grow your following, UnlockDM fits better. This is a researched comparison from both pricing pages and our own campaign data, not a hands-on test of ChatAutoDM.
The billing difference
| ChatAutoDM | UnlockDM | |
|---|---|---|
| How you pay | Monthly subscription | Once per campaign |
| Paid entry | Pro, ₹499 a month | Spark, Drop, or Viral per campaign |
| What scales the price | Plan tier and AI credits | Campaign length and unlock cap |
| Free path | 1,000 monthly contacts, 10,000 AI credits | First Spark campaign free, 50 unlocks over 7 days |
| Quiet month | ₹499 if you stay subscribed | Nothing |
ChatAutoDM's Pro and Elite plans are flat, so a viral Reel does not push you into a higher tier. That is a real strength over contact-billed tools like ManyChat, and it is why ChatAutoDM shows up in most India alternative lists.
UnlockDM's three campaign tiers differ by length and capacity. Spark runs 7 days with room for 500 unlocks. Drop has no time limit and 2,000 unlocks. Viral has no time limit and no unlock cap. Our per-campaign pricing guide shows when that model beats a subscription and when it does not.
When ChatAutoDM costs less
Run the calendar honestly. If you post a keyword Reel every week and leave the automation on, a flat ₹499 is hard to beat. Stacking a campaign for each of those Reels would cost more.
ChatAutoDM also includes AI FAQ replies, which UnlockDM does not offer. If your DMs are mostly repeat questions in different words, that is a job for a conversational tool, not a campaign tool. Our ChatAutoDM review covers its tiers in detail.
When UnlockDM fits better
The pattern where a subscription wastes money is spiky posting: a festive giveaway, a product drop, a lead magnet, then weeks of normal content. You pay for the campaign window and stop.
The second reason is what happens after the DM. Every UnlockDM participant gets a personal referral link, and you can set a bonus reward for people who bring friends. Drop and Viral campaigns add a leaderboard and a winner picker. ChatAutoDM's pricing page lists none of these, so a giveaway on it ends at delivery.
Follow gates: listed versus verified
Both tools let you ask for a follow before the reward. ChatAutoDM lists Ask to Follow on every plan, but its pricing page does not say whether the follow is checked or self-reported. Some tools in this category only ask people to tap "I'm following" and trust the tap.
UnlockDM checks. Meta's messaging API exposes an is_user_follow_business field that returns whether a person follows your account, once that person has messaged you. When the person taps the confirm button in the DM, UnlockDM checks that field and delivers only if the follow is real. Our guide to how a follow gate works explains the flow.
Here is why it matters. Across 21 follow-gated UnlockDM campaigns between 11 July and 6 October 2026, 2,399 of 5,329 participants (45.0%) completed a verified follow. One large campaign made up 3,925 of those participants. Without it, the rate was 55.1% across 1,404 people, the same as the median campaign. The creators are mostly in India, so read this as one platform's pattern, not a benchmark.
The useful takeaway: when the follow is actually checked, roughly half of the people who comment end up following. A self-reported gate cannot tell you that number at all. If follower growth is why you gate, ask which kind you are buying.
Who should pick which
Pick ChatAutoDM if you:
- Automate most weeks and want one flat monthly bill
- Want AI replies for questions that vary in wording
- Will stay under 1,000 contacts a month and use the free plan
Pick UnlockDM if you:
- Run campaigns in bursts and go quiet between them
- Want a verified follow before the reward, not a tap
- Want each participant to bring friends through a referral link
- Need a leaderboard or winner picker for a giveaway
If you want the wider field, the full tool roundup compares both against the rest of the category, and the UnlockDM vs ChatAutoDM page lines the plans up side by side.
Sources checked
Checked on 2026-10-06. Vendors revise pricing pages without notice.
- ChatAutoDM pricing (Free with 1,000 monthly contacts and 10,000 AI credits, Pro ₹499 a month, Elite ₹1,299 a month, Ask to Follow listed on every plan)
- Meta for Developers: Instagram messaging User Profile API (
is_user_follow_business, available after the person messages the account) - UnlockDM production data: 5,329 participants in 21 follow-gated campaigns, 11 July to 6 October 2026, internal and test accounts excluded
UnlockDM charges once per campaign and checks the follow before it sends the reward. Your first Spark campaign is free, so you can see your own follow rate before paying.
