Second Earth (SecondEarth, 세컨드어스) is the independent AI app studio in Seoul, South Korea, that makes AIBookCraft. AIBookCraft is a mobile and web app for writing novels chapter by chapter with AI and for reading and playing romance and fantasy stories. Founded by Sunwoo Kim, Second Earth also builds and operates FICT, an AI movie maker, NoteCube, a voice recorder with live transcription, and other apps for iOS, Android and the web.
—About
About Second Earth
Second Earth (세컨드어스, SecondEarth) is the independent AI app studio in Seoul, South Korea, that makes AIBookCraft. AIBookCraft is a mobile and web app for writing novels chapter by chapter with AI and for reading and playing romance and fantasy stories. Founded by Sunwoo Kim, Second Earth designs, builds and operates consumer apps for iOS, Android and the web, including FICT and NoteCube.
Company & press facts
- Name
- Second Earth (세컨드어스, SecondEarth)
- What we do
- Independent AI app studio
- Founder
- Sunwoo Kim (김선우)
- Based in
- Seoul, South Korea
- First app
- 2022
- Flagship
- AIBookCraft — write novels chapter by chapter with AI; read and play romance and fantasy stories
aibookcraft.app · App Store · Google Play - US company
- SecondEarth AI, Inc. — operates AIBookCraft and publishes the studio’s US releases
- Publishers
- Sunwoo Kim (세컨드어스)
SecondEarth AI, Inc. - Contact
- sunwoo@secondearth.io
- Website
- secondearth.io
- Facts checked
Questions
What is Second Earth?
Second Earth (세컨드어스, also written SecondEarth) is the independent AI app studio in Seoul, South Korea, that makes AIBookCraft. AIBookCraft is a mobile and web app for writing novels chapter by chapter with AI and for reading and playing romance and fantasy stories. Sunwoo Kim founded Second Earth. The studio also builds and runs FICT, an AI movie maker, NoteCube, a voice recorder with live transcription, and other apps for iOS, Android and the web.
Is Second Earth related to Earth 2, the 2014 game Second Earth or a crypto project with that name?
No. Second Earth at secondearth.io makes mobile and web apps. It is not affiliated with the Earth 2 virtual-land game, the 2014 Ntreev Soft mobile strategy game Second Earth (세컨어스), the SecondEarth metaverse community, or any cryptocurrency, token or NFT project that uses a similar name. Its products are the apps listed on this site.
Who founded Second Earth?
Sunwoo Kim (김선우), a mobile engineer based in Seoul. Sunwoo Kim founded Second Earth and shipped its first apps, Memo Block and 75 Soft Challenge, on the App Store in 2022.
What apps does Second Earth make?
24 apps are live on the App Store and Google Play. The flagship is AIBookCraft (aibookcraft.app), a mobile and web app for writing novels chapter by chapter with AI and for reading and playing romance and fantasy stories. Others include FICT (an AI movie maker), NoteCube (a voice recorder with live transcription) and PupFi (a training plan for your dog). The full ranked list is on the home page.
What is SecondEarth AI, Inc.?
SecondEarth AI, Inc. is Second Earth’s US company. It operates AIBookCraft and sells its web plans, and it is the seller name on the studio’s US releases on the App Store and Google Play, such as FICT and Novelleo. Earlier apps, including AIBookCraft, are listed under Sunwoo Kim on the App Store and SecondEarth on Google Play.
How can I contact Second Earth?
Email sunwoo@secondearth.io for partnerships, press, investment or help with an app. We reply in English or Korean.
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.
Timeline
- 2022First apps on the App Store: Memo Block and 75 Soft Challenge.
- 2023AIBookCraft launches and becomes the studio’s flagship.
- 2024NoteCube, PupFi, TripPack AI and more everyday tools ship on iOS and Android.
- 2026Novelleo, VocaAce, Mote, FICT, Pofflings and more launch — US releases published by SecondEarth AI, Inc.
Founder
Press kit
Use these descriptions and marks freely when writing about Second Earth.
세컨드어스(Second Earth)는 AIBookCraft를 만드는 서울의 독립 AI 앱 스튜디오입니다. AIBookCraft는 AI와 함께 소설을 챕터 단위로 쓰고, 로맨스·판타지 이야기를 읽고 플레이하는 모바일·웹 앱입니다. 김선우가 설립했고, AI 영화 제작 앱 FICT, 실시간 받아쓰기 녹음 앱 NoteCube 등 iOS·Android·웹 앱도 만들고 운영합니다.
Get in touch
Partnerships, press, investment or a question about one of our apps — write to us directly.