신·달·야 (Xin Da Ya)

Account

Google login, invite activation, and monthly subscription are the only way to use Xin Da Ya.

This is the hosted account destination opened by the Chrome extension. Public translation uses the company-operated DeepSeek V4 Flash route; users never paste model API keys into the extension.

신·달·야 계정은 Google 로그인, 초대 코드 활성화, 월 구독 상태로 사용 가능 여부를 판단합니다.

Flow

Every account follows the same release path.

1

Google login

Google identifies the Xin Da Ya account. The Chrome profile alone does not grant service access.

2

Invite activation

Invite codes are bound to the signed-in account and activate only after their configured activation time.

3

Monthly subscription

Translation requires an active monthly subscription. The extension blocks translation when entitlement is missing.

Subscription

Monthly only, with card and crypto checkout.

No trial, no annual plan, and no user-managed provider account.

Global plan USD 7 / month
Korea plan KRW 8,800 / month, VAT included
Payment options Hosted card checkout and hosted crypto checkout
Provider route DeepSeek V4 Flash only, operated by the Xin Da Ya backend
Usage limits 5-hour window plus weekly usage limit; exhausted accounts resume after the reset time

Extension handoff

The Chrome extension returns here after account work.

The extension opens the backend login-start route with a validated return URL. After the hosted account flow sets a web session, the extension exchanges that session for a short-lived extension token.

  1. Open the extension options page and choose Google login.
  2. Complete the hosted account flow for the same Google account you want to use in Chrome.
  3. Activate the invite code after its activation time.
  4. Complete card or crypto monthly checkout when payment is required.
  5. Return to the extension and refresh account status before translating pages or YouTube subtitles.

States

Account states shown by the extension.

login_required Google login has not been completed for the Xin Da Ya account.
invite_required An invite code must be activated before subscription access is available.
invite_pending The invite code is valid but cannot activate until its configured activation time.
payment_required The account needs an active monthly card or crypto subscription.
quota_exhausted The current 5-hour or weekly usage window is exhausted until reset.
active The account can use DeepSeek V4 Flash web and YouTube translation.