Quick answerTo DM everyone who commented on a viral reel, turn on a comment to DM automation for that reel and, on Pro, run it on existing comments. Each comment can get one private reply within 7 days, and Instagram allows about 750 private replies an hour, so start the same day and let the tool queue the rest.
The maths
| Comments | Time to reply at 750 an hour |
|---|---|
| 1,000 | About 1.5 hours |
| 5,000 | About 7 hours |
| 20,000 | About 27 hours |
Plenty of time inside 7 days, if you start early.
Step by step
- Create the automation on the reel with the keyword you asked for.
- Pro: use Retrigger to run it on comments from the last 7 days. Free shows how many are waiting.
- Check your monthly DM limit. FameChamp's Held back card lists anyone the limit stopped.
- Leave it running. New comments are handled as they arrive.
Do not
- Reply by hand to hundreds of people. It is slow and uses the same private reply.
- Run two tools on one reel.
Frequently asked questions
What about comments older than 7 days?
Instagram does not allow a private reply to them. Pin a comment pointing to your bio link or post a story.
More use cases
- Auto DM everyone who comments on your reels
- DM people who already commented
- Sell with a swipeable product carousel in DMs
- Automatic DM follow-ups that respect the rules
- Collect phone numbers in Instagram DMs
- Follow to unlock: turn commenters into followers
- Story reply automation
- DM keyword triggers
- Instagram ice breakers
- Meta Ads custom audiences from DM leads
- Automate DMs across several Instagram accounts
- AI customer support in Instagram DMs
- AI replies in Hindi and Hinglish
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