Karsten

PM | iOS Indie Dev

2 points

About

Built Klarjahr in 19 days using only Google Gemini. Zero code written by me. PM → shipped iOS app. Proving solo builders can ship production apps in 2025.

Links

http://www.karstenschwarzkopf.de/

Badges

Tastemaker

Gone streaking

Forums

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2mo ago

ZEST Culinary Puzzle Game FREEBIE - Swap puzzles. Unlock recipes. Built with Gemini.

I wanted to build a puzzle game. I am not a programmer. So I tested one idea: can a busy dad ship a real game with AI in evenings and weekends? 3 weeks. Google Gemini. Zero code by me. ZEST is a swap-puzzle game that unlocks real recipes. 50+ recipes. 3 difficulty modes. Built entirely with AI. How to unlock with code 1. Complete onboarding 2. Tap any recipe with a lock icon 3. The “Premium Access” screen opens - scroll down 4. Tap “Redeem code” and enter PRODUCTHUNT Feedback welcome.

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2mo ago

Klarjahr — The 0-Code Production App - iOS app: Built in 19 late-night sessions. Zero code.

A full iOS app built entirely by one PM in 19 days (late-night sessions after kids were in bed). Nov 23 first commit → Dec 12 App Store live. 0 code written manually—only prompts to Google Gemini. Design, code, and submission—all AI-powered.