# Second Earth (세컨드어스)

> Second Earth is an independent AI app studio in Seoul, South Korea, founded by Sunwoo Kim. It builds and operates consumer apps for iOS, Android and the web, including AIBookCraft, an AI co-writer for novels, FICT, an AI movie maker, and NoteCube, a voice recorder with live transcription.

## Company facts
- Name: Second Earth (세컨드어스, SecondEarth)
- What: independent AI app studio
- Founder: Sunwoo Kim (김선우)
- Based in: Seoul, South Korea
- First app released: 2022
- Apps live: 22 on the App Store and Google Play
- Flagship: AIBookCraft — An AI co-writer that turns one idea into a finished book. (https://www.aibookcraft.app)
- App publishers: Sunwoo Kim (세컨드어스); SecondEarth AI, Inc.
- Contact: sunwoo@secondearth.io
- Mission: Bring the future forward through productivity. We build AI tools that let one person do what used to take a team — and we run the studio the same way.

## Apps (in release order)
1. Memo Block (Productivity, 2022-01): Quick memo blocks that help you remember. https://apps.apple.com/us/app/id1606622380
2. 75 Soft Challenge (Everyday, 2022-02): Daily goals, water, workouts and reading for 75 Soft. https://apps.apple.com/us/app/id1608023757 https://play.google.com/store/apps/details?id=com.unicornstory.mission&hl=en
3. MindBot (Productivity, 2023-03): Our first AI chat assistant, from 2023. https://apps.apple.com/us/app/id6446171950 https://play.google.com/store/apps/details?id=com.unicornstory.MindBot&hl=en
4. AIBookCraft (Create, 2023-06): An AI co-writer that turns one idea into a finished book. https://www.aibookcraft.app https://apps.apple.com/us/app/id6449461895 https://play.google.com/store/apps/details?id=com.secondearth.bookai&hl=en
5. TripPack AI (Everyday, 2023-12): Packing lists for every kind of trip. https://apps.apple.com/us/app/id6474236982 https://play.google.com/store/apps/details?id=com.secondearth.pack&hl=en
6. TripDNA (Play, 2024-01): Notes on your friends' personality types. https://apps.apple.com/us/app/id6475634010 https://play.google.com/store/apps/details?id=com.secondearth.tripdna&hl=en
7. NoteCube (Productivity, 2024-01): Record, transcribe and turn conversations into notes. https://apps.apple.com/us/app/id6476787394 https://play.google.com/store/apps/details?id=com.secondearth.notecube&hl=en
8. PupFi (Everyday, 2024-04): A daily schedule and training plan for your puppy. https://apps.apple.com/us/app/id6478083950 https://play.google.com/store/apps/details?id=com.secondearth.pupfi&hl=en
9. Goal Setting Planner (Productivity, 2024-08): Turn big goals into small daily routines. https://apps.apple.com/us/app/id6602894453 https://play.google.com/store/apps/details?id=kr.secondearth.habit&hl=en
10. Symptom Tracker Journal (Everyday, 2024-12): A calm daily journal for symptoms, mood and medication. https://apps.apple.com/us/app/id6737143669 https://play.google.com/store/apps/details?id=kr.secondearth.everytracker&hl=en
11. Freelytic (Productivity, 2026-01): Turn a business idea into an actionable roadmap. https://apps.apple.com/us/app/id6756243520 https://play.google.com/store/apps/details?id=ai.freelytic.app&hl=en
12. AI Quest (Create, 2026-04): Create original characters and chat with them. https://apps.apple.com/us/app/id6762068927 https://play.google.com/store/apps/details?id=io.secondearth.aiquest&hl=en
13. Novelleo (Create, 2026-04): Write the book you keep thinking about, one chapter at a time. https://apps.apple.com/us/app/id6762341259 https://play.google.com/store/apps/details?id=io.secondearth.novelleo&hl=en
14. MaxxVibe (Everyday, 2026-06): An AI coach for photo angles, framing and lighting. https://apps.apple.com/us/app/id6778695330 https://play.google.com/store/apps/details?id=io.secondearth.maxxvibe&hl=en
15. VocaAce (Productivity, 2026-07): Vocabulary study as quick, focused runs. https://apps.apple.com/us/app/id6786505282 https://play.google.com/store/apps/details?id=io.secondearth.vocaace&hl=en
16. Noise Meter (Everyday, 2026-07): A real-time decibel meter for everyday noise. https://apps.apple.com/us/app/id6792024986 https://play.google.com/store/apps/details?id=io.secondearth.noisemeter&hl=en
17. Mote (Create, 2026-07): Your camera as a live visual instrument. https://apps.apple.com/us/app/id6790658179 https://play.google.com/store/apps/details?id=io.secondearth.mote&hl=en
18. Celebrity Blend (Create, 2026-08): One selfie, reimagined as an original star portrait. https://apps.apple.com/us/app/id6796958027 https://play.google.com/store/apps/details?id=io.secondearth.celebrityblend&hl=en
19. Park Answer (Everyday, 2026-08): Snap a parking sign, get a clear answer for right now. https://apps.apple.com/us/app/id6796958683 https://play.google.com/store/apps/details?id=io.secondearth.parkanswer&hl=en
20. Bread Rescue (Everyday, 2026-08): One photo of your loaf, clear fixes for the next bake. https://play.google.com/store/apps/details?id=io.secondearth.breadrescue&hl=en
21. Pofflings (Play, 2026-09): A cozy color-match puzzle, one thoughtful tap at a time. https://apps.apple.com/us/app/id6809685753 https://play.google.com/store/apps/details?id=io.secondearth.pofflings&hl=en
22. FICT (Create, 2026-09): An AI movie maker for original animated shorts. https://tryfict.com https://apps.apple.com/us/app/id6811763996 https://play.google.com/store/apps/details?id=io.secondearth.fict&hl=en

## Pages
- Home: https://www.secondearth.io/ (Korean: https://www.secondearth.io/ko)
- About, company facts and press kit: https://www.secondearth.io/about (Korean: https://www.secondearth.io/ko/about)
- Privacy policy: https://www.secondearth.io/privacy
- Terms of service: https://www.secondearth.io/terms
- SecondEarth Life, a web experiment with AI neighbors: https://www.secondearth.io/life

## Founder
- Sunwoo Kim: https://x.com/sunwoo_builds · https://www.linkedin.com/in/sunwoo-kim · https://github.com/Sun-Woo-Kim