Competitor analysis

The “Competitors” section helps you learn from other people’s accounts — add a competitor by @username, and Repost21 will collect their posts, calculate metrics and run an AI breakdown: which topics and formats resonate with the audience, when it’s best to publish and which posts you should make yourself. For X there’s a separate mode — automatic replies to a competitor’s new tweets on behalf of your account.

How to add a competitor

1. Open the “Competitors” section and click “Add”.
2. Pick a social network — 7 platforms are supported, switched with chips in the form.
3. Enter the competitor’s @username — with or without the @ sign, case doesn’t matter.

The competitor appears in the list as a card: @username, name, platform and follower count.

Note

Post parsing currently works for Telegram, X and Facebook. For X and Facebook you need a connected account for that network in the Social networks section — Repost21 uses it to read the competitor’s public posts.

Post parsing and metrics

Open the competitor’s card (the “Breakdown” button) — you’ll land on the details page. The “Re-parse” button collects up to 30 of the competitor’s latest posts. The update is triggered manually — click “Re-parse” whenever you want fresh data.

After parsing, key indicators appear on the page:

Indicator	What it means
Posts	how many posts were collected
Average ER	average engagement across the collected posts
Top topic	the topic that most often resonates with the audience
Best slot	the posting time with the strongest response

Below is the “Competitor’s best posts” block: each post with views, likes, comments, date and ER. Posts with the highest engagement are marked with a “TOP” label, and the link lets you open the original on the social network. Sorting toggle: “Top ER” / “New” / “All”.

AI breakdown

The “AI breakdown” button analyzes the last 30 collected posts and gathers the conclusions into a single card:

• Top topics — what the competitor writes about most often and what gets a response.
• Formats — which content types work best.
• Best time — when posts gather more engagement.
• Hashtags — which tags the competitor uses.
• Recommendations — what of this you should apply.
• Post ideas — ready ideas based on the analysis.

Under the ideas there’s a “Create a post from this idea” button — the brief goes straight into the composer, where AI content generation turns it into a ready post tailored to your platforms.

Tip

Compare the AI breakdown’s conclusions with your own analytics: if a competitor’s best slot matches your engagement peak — that’s a strong signal for when to schedule your posts.

Auto-replies on X

For competitors on the X platform you can enable auto-replies: when a competitor publishes a new tweet, your connected X account automatically replies with a short comment. This way you regularly show up in the comments of the competitor’s audience without manual work.

How to enable

1. Connect your X account in the Social networks section.
2. Open the competitor’s page on X and turn on the auto-replies toggle.
3. Pick the tone of replies with a chip: witty, supportive or bold.

How it works

• The competitor’s new tweets are checked automatically about once every half hour.
• We reply only to fresh tweets — no replies are sent to old posts.
• The reply is short (up to 240 characters) and written in the language of the original tweet.
• One tweet — one reply, with a pause kept between replies.

Built-in limiters

Protection	How it works
Daily limit	no more than 8 auto-replies per day
Topic blocklist	tweets about sensitive matters (tragedies, scandals and the like) are skipped without a reply
Auto-shutoff	after 3 errors in a row auto-replies turn off and you get a notification

The auto-replies card shows statistics — how many were published today and in total, how many replies failed or were skipped, plus a list of the latest replies.

Note

If auto-replies turned off on their own — check the X account connection in the “Social networks” section and turn the toggle back on.

What’s next

• AI content generation — take an idea from the breakdown all the way to a ready post.
• Analytics — compare your metrics with competitors.
• Social networks — connect accounts for X/Facebook parsing and auto-replies.