Freebuff for advertisers
Buy engagement, not impressions.
Real developers, founders and builders read your post, comment on it in their own words, like it, and repost it. Every engagement is proven with a screenshot before it is paid for, and every one of them is the exact signal the platforms rank on — so the money you spend makes the post travel further on its own.
X / Twitter
Like, comment and repost
Like, comment and repost
Upvote and a genuine comment
The arithmetic
A promoted post competes with your organic reach. This feeds it.
| What you buy | Typical cost | Effect on organic reach |
|---|---|---|
| LinkedIn promoted post | $8–14 per click | Paid distribution, no engagement signal |
| X promoted post | $1.5–4 per click | Paid distribution, no engagement signal |
| Freebuff engagement | $0.50 — like + comment + repost | Feeds the ranking signal that earns free reach |
Competitor figures are published rate-card ranges for developer-audience campaigns and vary a great deal by geography and targeting. The point is not the exact number: it is that a click buys one person looking once, and an engagement buys one person looking, saying something, and putting it in front of their own followers.
How it works
Add the post you want to grow
Paste the link to a post you already published on X, LinkedIn or Reddit. Add a line on what it is about, and a note on what you would like people to talk about.
Set a daily rate
From $10/day, in $5 steps. That is what you pay each day the campaign runs, and it is what sets your delivery — $10 buys 20 engagements a day. Pause any time.
Developers engage, for real
Your post enters the Earn feed. Developers read it, leave a comment in their own words, like it, and repost it — and prove each one with a screenshot before they are paid.
Who engages
People who ship software, from everywhere.
Freebuff is a free coding agent used by developers, founders and indie builders around the world. Engaging is how they raise their own free limits — so the person commenting on your post is someone who writes code for a living and had a reason to spend two minutes on it. That is a very different audience from the one a broad promoted post reaches, and you are not paying to find them.
- One engagement per person per post, ever — enforced in the database, not by policy.
- A daily ceiling per person, so a campaign reaches many people rather than one person repeatedly.
- Every engagement proven with a screenshot and checked before it is paid.
- Skip rates per post, so you can see which posts people did not want to be associated with.
Questions