Google login
Account identity uses Google login. The extension checks Xin Da Ya account state separately from the Chrome profile.
Xin Da Ya / 신·달·야
Read the web in your language without thinking about translation.
Xin Da Ya is a paid Chrome extension that preserves the original page structure, translates visible web text and YouTube caption cues through the 신·달·야 backend, and shows results through a character hoverball and subtitle overlay.
신·달·야는 브라우저 안의 글을 자연스러운 모국어로 읽게 만드는 DeepSeek V4 Flash 전용 번역 SaaS입니다.
- Google login, invite activation, active monthly subscription
- DeepSeek V4 Flash-only backend translation
- No user API keys, no public model picker
- 5-hour window and weekly usage limit
XDY
Faithful · Clear · Elegant
Core
One account flow. No provider setup.
Users do not enter provider API keys. The 신·달·야 backend operates the DeepSeek V4 Flash route, usage metering, billing entitlement, and ASR workflow behind a simple Chrome translation experience.
Invite activation
Invite codes can be used only after their activation time and are bound to the signed-in account.
Translation runtime
Page text, YouTube cues, and no-caption STT results are translated by the backend and rendered by the extension overlay.
Service routing
DeepSeek V4 Flash is the only public translation provider.
Provider secrets are held only by the backend service. Public users get the same DeepSeek V4 Flash route, quota rules, and subscription entitlement checks without model selection.
| Area | Release behavior | Status |
|---|---|---|
| Translation | DeepSeek V4 Flash only | Backend contract in progress |
| Account | Google login and extension token | Planned for 1.0 |
| Entitlement | Invite activation plus active monthly subscription | Planned for 1.0 |
| Limits | 5-hour window and weekly usage limit | Backend contract in progress |
YouTube / Transcript
YouTube subtitles start with caption tracks, then use backend STT when needed.
Caption track first
When YouTube provides a timedtext caption track, Xin Da Ya translates those cues and displays them in its own video overlay.
No-caption fallback
Videos without captions use the backend transcript workflow. If server-side access fails, a user-started active YouTube tab audio chunk can be sent to backend STT to create subtitle cues.
Pricing
Monthly only. No trial. No annual plan.
월 $7, 한국은 VAT 포함 8,800원입니다. 무료 체험과 연간 결제는 제공하지 않습니다.
| Global | USD 7 / month |
|---|---|
| Korea | KRW 8,800 / month, VAT included |
| Payment | Card and crypto hosted checkout |
| Access | Google login, invite activation, active subscription |
Install
Installation before Chrome Web Store public release
The public install link will be connected after Chrome Web Store review. Reviewers and developers use the submission ZIP or the built extension artifact.
- Open
chrome://extensionsin Chrome and enable Developer mode. - Unzip the submission ZIP or prepare the built
dist/folder, then load it as an unpacked extension. - Complete Google login in the options page and activate the invite code.
- Confirm monthly subscription entitlement, then start translation on a webpage or YouTube.
- After public approval, this section will point to the Chrome Web Store install link.
Privacy posture
Translation text, usage state, and billing state are handled by the backend.
Backend translation
Page text and YouTube cues selected for translation are sent to the 신·달·야 backend and processed through the DeepSeek V4 Flash route.
Usage metering
The 5-hour window and weekly limit are enforced by the server ledger and displayed in the extension.
Local cache
Translation cache used to reduce duplicate requests is stored in Chrome extension storage and can be cleared from options.
See the Privacy page for the full data-handling summary.