The #1 most engaging way to advertise in the AI era
Targeted engagement-based ads directly in the feed of developers, founders, and more.
Apply to advertiseBefore Freebuff Advertising: <300 views
We shipped the thing. It's live today, free to try, and we'd love to know what breaks.
Embarrassment
After Freebuff Advertising: 50k views+
We shipped the thing. It's live today, free to try, and we'd love to know what breaks.
Low advertising cost
As low as $0.50 per engagement vs $5 industry average
Backed by Y Combinator
Boost engagement, not impressions
The highest-leverage audience you will ever find.
We shipped the thing. Free to try, and we'd love to know what breaks.
Twitter / X Comments and reposts from real developers.
Priya Raman
Staff Engineer · Platform
2d ·
Reposting because more teams should see this — we cut our tooling spend to zero and shipped faster.
LinkedIn Reposted by real profiles, onto more feeds.
Has anyone else switched their whole stack over to this yet?
Reddit Upvotes and comments raving about your product.
GitHub Real stars from devs doing real work.
Create your account
Work email
dev@theirstartup.com
312 developers signed up this week
Conversions Developers signing up and actually trying it.
QA brief
Run through onboarding and tell us where you got stuck.
Any other task QA, feedback, whatever you need doing.
The lowest cost per engagement across the board
We win on cost every single time.
Cost per engagement — shorter is cheaper
Freebuff
Reddit ads
Facebook ads
Google ads
X / Twitter post boost
LinkedIn post boost
One account. The difference is who showed up.
@victorxheng — ours, not a commissioned case study. Open any of them; X shows you the count itself.
Before
~0
views per post
forgot my laptop at home today, ended up laying on the office couch the entire time working from my phone somehow was able to ship more. the future of ai is laziness
3:54 PM · May 11, 2026
coding has devolved to the point where you can now do everything from imessage itself. today i spent my workday vibecoding from the couch. shoutout @triggerdotdev i love you
9:16 PM · May 7, 2026
After
10–0k
views per post
you can now get unlimited free GLM 5.2 for the first time in history 😳 this is bigger than ever. here's how to do it: 1 / cancel your existing subscriptions: cancel your Lovable, Cursor, and Claude Code subscriptions. you don't need them anymore
6:34 PM · Aug 10, 2026
bolt lost almost all their customers due to this free alternative 😳 their $700M valuation just got wiped out overnight. widely regarded as one of the worst AI products in history, bolt is beign replaced by this small open-source repo.
12:41 PM · Aug 7, 2026
How it works
- 01
Add the post you want to grow
Paste the link to a post you already published on X, LinkedIn, Reddit or GitHub. Add a line on what it is about, and a note on what you would like people to talk about.
- 02
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.
- 03
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.
Questions
“This is f****** crazy.”
We just killed overpriced advertising