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Achievements

Achievement: Pair ExtraordinaireAchievement: Pull Sharkx3Achievement: QuickdrawAchievement: YOLOAchievement: Arctic Code Vault Contributor

Achievements

Achievement: Pair ExtraordinaireAchievement: Pull Sharkx3Achievement: QuickdrawAchievement: YOLOAchievement: Arctic Code Vault Contributor

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Sun-Woo-Kim/README.md

Sunwoo Kim

Founder, SecondEarth AI. I build AI-native consumer apps, ship fast, and scale what users pay for.

  • Subscription traction (Dec 28 2025): $3,156 MRR · $37,870 ARR
  • Subscription averages (last 90 days): $2,981 MRR · $35,770 ARR
  • Distribution (2025): 151,015 new customers
  • App Store signal (App Store Connect, Nov 28–Dec 27 2025): AIBookCraft 26K impressions / 856 units / $1.32K proceeds / 1.83K sessions (iOS)
  • Operating mode: solo founder; compact execution, rapid iteration
  • SF: relocating to San Francisco in early 2026
  • Stack: React Native · AWS Amplify · Amazon Bedrock · Expo · Sentry
  • Growth tooling: RevenueCat · Mixpanel · OneSignal · Superwall

What I’m building (now)

AIBookCraft — AI book writing → publishing

Helps creators go from idea → manuscript → publishable output with an AI-first workflow.

  • Why it wins: shortens time-to-finished-work (not “chat with an LLM”) and encourages repeat creation.
  • Proof: real subscriptions + global usage; strong iOS store signal.
  • Link: landing.aibookcraft.app

Freelytic — AI-assisted growth insights for creators

I’m building this on the side while scaling AIBookCraft: turns noisy analytics into clear actions creators can execute.

TripPack AI — personalized itinerary planning

Auto-curated travel plans based on preferences, time, and context—designed to save hours per trip.

Why this can be big

  • AI is the workflow: these products are built around end-to-end workflows where output quality and completion matter.
  • Compounding advantages:
    • Workflow depth: the product becomes part of a recurring habit (create → refine → publish).
    • Distribution loops: user outputs are inherently shareable (books, itineraries, recommendations).
    • Iteration speed: instrumented funnels + lifecycle automation to ship growth experiments quickly.
  • Global-first: built for international usage from day one.

What I’m looking for

  • YC / investors: I’m scaling my strongest wedge into a breakout AI consumer company. I’m moving to SF in early 2026 to build faster with the best network.
  • Potential collaborators: people who can move fast on product, growth, and systems.
  • Partners: platforms that power creator or travel workflows.

If you want a quick view, tell me what you want first (traction, revenue, product loop, growth channels) and I’ll share the most relevant numbers and screenshots.

Open-source (product-driven)

  • onesignal-mcp-server: automation layer for OneSignal workflows with MCP integration
  • AmplifyQuery: AWS Amplify (v6+) + React Query helpers I built for shipping RN apps faster — Sun-Woo-Kim/AmplifyQuery

Contact

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