Frequently Asked Questions

Click the theme toggle button (sun/moon icon) in the top right corner of any page. Choose Light, Dark, or System (matches your device preference). Dark mode uses a cyan-blue theme with deep blue-black backgrounds for comfortable night learning. Your choice is saved automatically.

Go to Settings → Notifications to control email and push notifications. Toggle options for study reminders, streak warnings, weekly progress reports, new content alerts, achievement unlocks, and social activity. You can also set quiet hours when notifications are silenced.

Yes! Go to Settings → Interface and select your preferred language for menus, buttons, and instructions. This is separate from your learning language (target language). SubLearn interface is available in 15+ languages. Content subtitles and exercises remain in your learning language.

Enable Study Reminders in Settings → Notifications. Choose your preferred study time (e.g., 6:00 PM daily) and days of the week. You'll receive a gentle reminder email and/or push notification when it's time to practice. Reminders respect quiet hours and pause automatically if you've already met your daily goal.

Quiet Hours silence non-urgent notifications during your chosen time period (e.g., 10 PM - 8 AM). Set quiet hours in Settings → Notifications → Quiet Hours. Critical notifications (security alerts, billing issues) still come through. Great for uninterrupted sleep or focus time.

Yes. Go to Settings → Privacy → Export Data to download a complete archive of your SubLearn data: profile, progress, vocabulary, exercise history, video watch history, and achievements. Exports are delivered as a ZIP file with JSON and CSV files. Processing takes up to 24 hours for large accounts.

Control email frequency in Settings → Notifications → Email. Choose between All emails, Important only (security, billing), or None (except critical account emails). You can also unsubscribe from specific email types like newsletters and tips while keeping progress reports.

SubLearn includes keyboard navigation (tab through all controls), screen reader support (ARIA labels), high contrast mode, reduced motion (disable animations), adjustable font sizes, and subtitle customization (size, color, background). Enable features in Settings → Accessibility. We're committed to WCAG 2.1 AA compliance.