EVT 2026-02-17 - Stage A2 Auth Methods, Tier Entitlement, and Paywall Routing

DomainsDOL EnglishProduct229 words1 min read

active

Session scope

Finalize outside-in baseline for:

Signup/login methods:
- User can use Vietnam phone number (OTP),
- user can use email (OTP),
- user can use Google account,
- user can use Facebook account.
Tier capability direction:
- Pro and Pro Max both keep unlimited test access and Pro-level Reading/Listening explanation.
- Pro Max focuses on stronger AI support (especially Writing/Speaking grading depth and AI assistance features).
- Free tier can use non-AI platform features and attempt exercises, but AI capabilities are locked.
Free-tier result visibility direction:
- Reading/Listening can show score.
- Writing/Speaking AI grading/explanation is not available for free.
- Exact minimal-result format for free Writing/Speaking remains to be locked.
Paywall behavior:
- Locked AI actions from free state should open upgrade/payment path.
- A shared checkout flow should support quick package selection and package-detail view before payment.
Post-payment success routing:
- If purchase starts from landing/exploration context, return user to previous page and show welcome-success popup.
- If purchase starts while user is inside exercise flow, current exercise/result page reloads and paid features become immediately accessible.