Legal
Cookie & Local Storage Notice
JAPAN Daily Reader uses essential cookies and browser storage to make the app work like a lightweight reading app.
Last updated: May 26, 2026
Current approach
The MVP does not use advertising cookies. Storage is mainly used for login, language preference, saved words before login, read status, review usage, and Home Screen reminder frequency.
MVP 阶段不使用广告 Cookie。浏览器存储主要用于登录、语言设置、未登录时保存单词、已读状态、复习次数和主屏幕提醒频率。
Storage used by the app
- japan-lens-access-token
- HttpOnly cookie used to keep the Supabase login session available to server routes.
- japan-lens-language
- localStorage value for English/Chinese UI preference.
- japan-lens-saved-words
- localStorage wordbook for users who read without logging in. Logged-in users can import/sync words to Supabase.
- japan-lens-read-articles
- localStorage read-status list so already-read articles can be marked.
- japan-lens-review-usage
- localStorage daily review count for anonymous Free users.
- japan-lens-install-reminder-v3-last-shown-date
- localStorage date key to show the Home Screen reminder at most once per day.
Third-party services
Supabase Auth, Stripe Checkout/Customer Portal, Vercel hosting, and Vercel Analytics may use security, operational, or privacy-focused analytics cookies or similar technologies when you interact with login, payment, hosted pages, or site analytics. Consent controls may be added where required by regional law.
Controls
You can clear localStorage and cookies in your browser settings. Clearing storage may remove saved words that have not been imported to your account and may sign you out.