International learning app with dark mode and multiple languages
A progressive web app for an international audience, with dark mode, multilingual content, offline access and smartphone installation — no app store needed.
The challenge.
The challenge was to build a learning app for an international audience without the app store approval process, fees and weeks of delay for each update.
What we built.
A progressive web app that loads quickly, works offline after the first visit and can be installed on any smartphone. Multiple languages, dark mode for evening use and a fully responsive layout are built in.
See the system in action.
A visual excerpt from the project, not just a description. See the interface, structure and impact behind the case study.
What changed in measurable terms.
Multiple languages from one codebase, enabling international launches without rebuilding the app.
After the first load, the app can work without an internet connection.
No app store fees, and updates can ship in minutes rather than weeks.
More than a website: the platform behind it.
## Overview
An international learning platform built as a progressive web app: mobile-friendly, installable, available offline and multilingual. The web app approach makes it possible to publish content and updates quickly.
## Core modules
- Learning interface with responsive navigation and a clear content structure.
- Installable PWA for smartphones and desktop devices.
- Dark mode for comfortable use in the evening and during focused study.
- Multilingual support for international audiences and future expansion.
## Architecture
- React/Vite frontend with a service worker and Workbox strategy.
- IndexedDB and browser storage enable offline use after the first load.
- i18next and CSS variables keep language, theme and interface layers separately maintainable.
## Tech stack
## Operations & extensibility
- Updates can be deployed like a website, without app store approval.
- An offline-first structure reduces reliance on a stable internet connection.
- A single codebase for multiple languages and devices keeps maintenance and development efficient.