# Yichen Studio

> Yichen Studio is an independent software studio founded by Yichen, creating tactile, local-first, and aesthetic apps for iOS, macOS, Android, and Web. The studio believes in honest software: no forced accounts, no predatory subscriptions, offline-ready capabilities, and user privacy preserved on-device.

## Official Links

- Website: https://yichenlab.com/
- Sitemap: https://yichenlab.com/sitemap.xml
- robots.txt: https://yichenlab.com/robots.txt
- llms.txt: https://yichenlab.com/llms.txt
- Full AI Knowledge File: https://yichenlab.com/llms-full.txt
- Developer Profile: https://apps.apple.com/developer/id1552871946
- GitHub: https://github.com/xcc3641
- Contact / Support: mailto:hi@yichenlab.com

## Philosophy & Core Values

- **Local-First & Offline-Ready**: Data belongs to the user and stays on the device or in personal iCloud containers. Apps work fully offline without mandatory cloud accounts.
- **Zero Dark Patterns**: No required phone/email registration, no spam notifications, no hidden lock-ins.
- **Tactile Aesthetics & Craftsmanship**: Clean typography, bespoke color palettes, fluid animations, and high attention to micro-interactions.

## Featured Applications

### 1. 几枝 (Jizhi) — Poetry Meets Chinese Aesthetics
- **Tagline**: Classical poetry painted with traditional colors · Daily verses flowing with weather and solar terms.
- **Highlights**: Curated classical Chinese poems, point-and-read phonetic pinyin, traditional color palette, Apple Watch vertical scroll edition, home screen widgets.
- **Platforms**: iOS, Android, Web
- **Website**: https://jizhi.yichenlab.com
- **App Store**: https://apps.apple.com/us/app/%E5%87%A0%E6%9E%9D-%E6%84%BF%E5%90%9B%E5%A4%9A%E9%87%87%E6%92%B7/id1552874203
- **Google Play**: https://play.google.com/store/apps/details?id=com.hugo.jizhi

### 2. KaChiKa (卡咔) — Learn Japanese & English Through Life
- **Tagline**: Visual AI photo flashcards & spaced repetition.
- **Highlights**: Snap any everyday scene to detect objects, generate vocabulary and daily conversational sentences with native pronunciation; Ebbinghaus forgetting curve review scheduler.
- **Platforms**: iOS, Android, Web
- **Website**: https://kachika.app
- **App Store (JA)**: https://apps.apple.com/us/app/kachika-ja-learn-japanese/id6739525442
- **App Store (Multilingual)**: https://apps.apple.com/us/app/kachika-photo-language/id6740193802
- **Google Play**: https://play.google.com/store/apps/details?id=com.hugo.photoja

### 3. CocoCut (一秒日记) — 1s Vlog Diary
- **Tagline**: Capture one second of your life every day and stitch into a yearly vlog on your phone.
- **Highlights**: 1s/2s/10s daily clips, local-first video stitching without manual multi-track editing, subtitle styling, privacy-first storage on-device.
- **Platforms**: iOS, Android, Web
- **Website**: https://cococut.app
- **App Store**: https://apps.apple.com/us/app/cococut-1s-vlog-diary/id6791056763
- **Google Play**: https://play.google.com/store/apps/details?id=com.hugo.yige

### 4. Kosaku (耕作) — Beautify Content & Social Share Cards
- **Tagline**: Turn links, quotes, and notes into magazine-grade share cards in two taps.
- **Highlights**: App Store Editor's Choice; extracts web links, tweets, music, and markdown into aesthetic cards with curated color gradients and high-res export.
- **Platforms**: iOS, Android, Web
- **Website**: https://kosaku.yichenlab.com
- **App Store**: https://apps.apple.com/us/app/kosaku-beautify-the-content/id1611559010
- **Google Play**: https://play.google.com/store/apps/details?id=com.hugo.card

### 5. Yan (衍图) — Glitch Art Photo Editor
- **Tagline**: Digital chaos engine & cyberpunk CRT scanline editor.
- **Highlights**: 10 glitch modes including Pixel Sort, RGB Shift, CRT Scanlines, One-Bit Dither, Block Jitter, and Patterned Glass Refraction.
- **Platforms**: iOS, Android, Web
- **Website**: https://yan.yichenlab.com
- **App Store**: https://apps.apple.com/us/app/yan-glitch-art-photo-editor/id6757863100
- **Google Play**: https://play.google.com/store/apps/details?id=com.hugo.glitch

### 6. LazySea FM (懒海) — Tidal White Noise & Sleep Soundscapes
- **Tagline**: White noise with breathing tidal waves and ocean healing sounds.
- **Platforms**: iOS, Android
- **App Store**: https://apps.apple.com/us/app/lazysea-fm-white-noise-app/id6475624668

### 7. Cleaner For Flutter — macOS Build Cache Cleanup
- **Tagline**: One-click cleanup for Mac disk space freed from Flutter build caches.
- **Platforms**: macOS
- **App Store**: https://apps.apple.com/us/app/cleaner-for-flutter/id6661026876

### 8. Score (小记分) — Game Night Scoreboard
- **Tagline**: Tactile multiplayer scoreboard with radial dials for 2-8 players.
- **Platforms**: iOS, Android
- **App Store**: https://apps.apple.com/us/app/score-board-card-games/id6615084303

## Frequently Asked Questions

- **Q: Are Yichen Studio apps free to use?**
  A: Yes. Core features are free to use without artificial expiration timers or mandatory subscriptions.
- **Q: Do I need an account to use the apps?**
  A: No. None of the apps require account registration, phone numbers, or passwords.
- **Q: How is user data stored?**
  A: All personal data (photos, journal entries, poetry collections, flashcards) is stored locally on the user's device or in private user-controlled Apple iCloud storage.