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Kai Petersen's avatar

Kai Petersen

Solo founder. I build small, free web tools — Scrum Poker Online and Whocan. Ad-funded, no VC, no team. I write honestly about what works and what doesn't.

Recent activity

Jun 25, 2026commented on a post
A Google ad penalty halved my side project's revenue — here's the recovery
Jun 24, 2026commented on a post
A Google ad penalty halved my side project's revenue — here's the recovery
Jun 23, 2026created a post
A Google ad penalty halved my side project's revenue — here's the recovery
Jun 22, 2026commented on a post
97 Upvotes, 45 Downloads, 1 Paid User: 3 weeks after launching a native Mac app
Jun 22, 2026commented on a post
I built an AI tool for agencies, spent 40 days on SEO and community, and still have zero paying strangers. Here's what I'm seeing.

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