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$5K in 3 Days From a Ridiculous Vibe-Coded App

  • tonnoz

  • Software Engineer / App Developer
  • $5,000 in 3 days

📝 A guy named tonnoz posted a simple Instagram reel – reviewing a free GitHub project that makes ridiculous sounds when you slap a MacBook.

It went viral.

Comments were all “WHERE IS THE APP” “I NEED THIS” over and over.

So I built it.

48 hours later, SlapMac was live – a $5 app with 130+ sound clips across seven voice packs.

Slap your MacBook and it screams, moans, or yells “ULTRA COMBO!” depending on the pack 😂

He skipped the Mac App Store entirely and self-distributed from his own website…

no approval process, I am self distributing. Apple would have killed all the momentum

$5,000 in the first 3 days.

10 days in, that number hit $20,700 🤑

About half of all downloads convert to paid. He’s since raised the price to $7 and added a “USB Moaner” mode – plug in a USB device and your MacBook reacts.

tonnoz is a software engineer, but he vibe-coded SlapMac in 2 days with AI and now…

I’m reconsidering my whole career.

The app concept already existed as a free GitHub project. tonnoz just spotted the demand in the comments and shipped a polished version in 48 hours.

Your turn: scan trending content for “I NEED THIS” comments, then move fast 🔥

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Updated: April 2, 2026

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