Drop your hashtags, a key link, or a follow-up thought in the first comment - posted automatically the moment your main content goes live.
On Instagram and Threads, putting hashtags in a comment keeps your caption clean while still getting the reach benefit. Posthive handles this automatically.
Drop a link, a thread continuation, or a call-to-action in the first comment instead of cramming it into the caption.
The first comment needs to go live right when the post does - before anyone else comments. Posthive publishes both in the same pipeline, seconds apart.
Fig. 01 — Posthive composer first comment field
In the Compose page, expand the First Comment section and write your comment: hashtags, links, follow-up copy, whatever you need.
Set your publish time. The comment is queued together with the main post.
When the job runs, Posthive posts your content first, then immediately posts the comment as a reply - per platform, per account.
“I was copy-pasting the same post into five different apps every day. Every tool I tried was too expensive, too bloated, or didn't support the platforms I actually used. So I built Posthive.”

First comment scheduling works on Instagram, Threads, LinkedIn, Bluesky, and Mastodon. Facebook first comment support is pending Meta app review.
The first comment is posted within a few seconds of the main post going live — in the same job run, immediately after the post is confirmed published.
Yes. This is one of the most popular use cases. Write your hashtags in the first comment field and Posthive posts them as the first reply, keeping your caption clean.
Yes. You can put any text in the first comment, including URLs. This is especially useful on LinkedIn where posts with links in the caption get less reach.
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