Instagram's main platform features are feed posts and carousels, Reels, Stories, Live, Explore and ads, and comments work differently on each: public and lasting on posts and Reels, live-only during a broadcast, and private replies on Stories. This guide covers each feature and where comments do the most work for a creator or a business.
The surfaces at a glance
| Feature | What it is | How comments work |
|---|---|---|
| Feed posts and carousels | Photos and videos that stay on the profile | Public thread under the post, kept for as long as the post exists |
| Reels | Short vertical videos shown to followers and non-followers | Public thread under the video; the main route for strangers to join in |
| Stories | Photos and videos that disappear after a day | No public thread; replies arrive as private messages |
| Live | Real-time broadcasts | Comments scroll during the broadcast and are tied to that moment |
| Explore | A discovery page of suggested posts and Reels | Not a content type: it surfaces posts, with their own threads |
| Collab posts | A post shared by two accounts | One shared thread, visible on both profiles |
| Ads | Paid placements of posts or Reels | Public comments can appear on feed and Reels ads and need moderating |
Instagram changes its features often, so check the current app for the exact options, but the split between public and private interaction holds up across versions.
Feed posts and carousels
Posts are the long-lived surface. A post can collect comments for years, which makes its thread a permanent part of how the account looks. Carousels, which pack several images or clips into one post, share one thread across all slides. For a brand, a post's comments are worth tending: questions get answered, spam gets removed, and useful remarks get pinned. How Instagram comments work goes through the tools.
Reels
Reels are where strangers most often meet you, because Instagram shows them to people who do not follow you. That makes a Reel's thread the first thing many new visitors read. It is also a fast-moving surface: most of a Reel's attention comes in the first days. If you want to time support for a launch Reel, timing a comment order to a Reel or launch covers the hours that matter.
Stories
Stories have no public comment thread. A reply to a Story is a private message, and a response to a question sticker is private unless you choose to share it. That means Stories cannot carry social proof in the way posts do, and an order for comments has nothing to attach to. Stories are better for quick updates and for pointing people to a post.
Live
During a Live broadcast, comments scroll past in real time and the host can read them out. They are valuable as an interaction while the broadcast runs, but they are tied to the moment, not to a lasting thread under a post. A Live is a good place to answer questions that you can then turn into a post.
Explore, Collab posts and ads
- Explore. It decides which posts and Reels to show to whom; you cannot post to it directly. A post that arrives there from a stranger carries its thread with it, so the thread is part of the first impression.
- Collab posts. Two accounts share one thread, so moderation and replies are a joint job.
- Ads. A feed or Reels ad can carry public comments, which includes comments from people who have never seen your account. Read them daily and answer questions.
Where comments do the most work
Reels you want strangers to act on
The thread is the first thing a new viewer reads after the video.
Product and offer posts
Questions answered in public reduce hesitation for the next shopper.
Ads
People who do not know you judge you by what is under the ad.
Evergreen posts that visitors reach from your bio
Their threads last, so they are worth keeping tidy.
Where bought comments can go, and where they cannot
We sell Instagram comments, and what we can attach them to is limited by the surface. Our order form takes a public link to a post, Reel, carousel or ad, so it fits the public threads above. It cannot attach comments to Stories, Live broadcasts or direct messages, since those have no public lasting thread. If you want comments on a post, the ordering process is described in how to buy Instagram comments, step by step, and the business case for Instagram places these features in the wider picture.
Frequently asked questions
Q Can I get comments on an Instagram Story?
Not in the sense of a public thread. Replies to Stories arrive as private messages.
Q Do Reels and posts have separate comment threads?
Yes. Each post, carousel or Reel has its own thread. A Collab post has one shared thread across both profiles.
Q Can I order comments for an ad?
Our order form accepts a public ad or post link. Check that the link opens in a private browser window before you order.
Q Which feature should I focus on?
It depends on your goal. Reels reach strangers, posts last, and ads reach people who are not yet following you.