Installable web apps that work offline, feel native, and skip the app store. Service workers, push notifications, and sub-2s load times on any device.
Add-to-homescreen prompt, app manifest, and icons for Android and iOS. Feels like a native app.
Service worker caching strategy — content available even without internet connection.
Web push notifications for re-engagement — streak reminders, new content alerts, or custom triggers.
App shell architecture, lazy loading, and smooth animations — no janky web feel.
Define what loads instantly vs. what loads on demand. Core UX must work offline.
Cache-first or network-first per resource type. Offline fallbacks for all critical paths.
Web app manifest, icons for all sizes, install prompt logic and timing.
Lighthouse PWA audit, cross-device testing, GitHub Pages or custom domain deployment.
4 PWAs built with vanilla JS on GitHub Pages: number drills, pronoun trainer, countries/nationalities, and Estonian Verbs. SM-2 spaced repetition, Google TTS audio, offline support, and gamification.
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