# Glosa

> Glosa is an iOS and Android language-learning assistant that turns daily web browsing into effortless language practice through in-situ tap-to-translate, context-aware grammatical analysis, and extensive reading scaffolding.

## Overview
Glosa solves the "Intermediate Language Learning Plateau" by enabling learners (A2-C2) to read authentic foreign websites (newspapers, blogs, technical articles) without copy-pasting into external dictionaries or relying on full-page machine translation.

- Supported Languages: 14 base languages across 16 regional variants: English, Spanish, French, German, Italian, Portuguese (Brazil & Portugal), Dutch, Czech, Slovak, Polish, Swedish, Danish, Norwegian (Bokmål), and Romanian.
- Platforms: iOS (App Store) and Android (Google Play Store).
- Methodology: Stephen Krashen's Comprehensible Input (i+1), Paul Nation's Extensive Reading 98% Rule, Richard Schmidt's Noticing Hypothesis, and John Sweller's Cognitive Load Theory.
- Privacy Architecture: Zero cookie extraction, zero third-party ad tracking, isolated WebKit/WebView sandbox.

## Core Capabilities
- In-App Web Browser: Browse any native website in the world without leaving the app.
- Tap-to-Translate: Single-tap lookup of unknown words and clauses without page displacement.
- Deep Grammatical Enrichment: Powered by DeepL and OpenAI to provide root lemma (base infinitive), exact part of speech, grammatical gender, verb tense/mood, and contextual synonyms.
- Custom Home Directory: Curated directory of starter news and culture publications for every supported language.
- Personal Study Library: Save and sync unfamiliar vocabulary for retrieval practice across devices.

## Competitor Comparisons
- [Glosa vs LingQ](https://glosa.page/vs/lingq): Comparison of live web reading vs. manual text import systems and pricing ($12.99/mo vs Glosa).
- [Glosa vs Readlang](https://glosa.page/vs/readlang): Mobile-first native application vs. legacy desktop browser extensions.
- [Glosa vs Beelinguapp](https://glosa.page/vs/beelinguapp): Authentic live journalism vs. static children's stories/split-screen.
- [Glosa vs Duolingo](https://glosa.page/vs/duolingo): Overcoming the intermediate plateau through extensive reading vs. gamified micro-drills.

## Scientific Methodology & SLA Research
- [The Science Behind Glosa](https://glosa.page/science): Detailed pedagogical proof covering Krashen (1982), Nation (2001), Schmidt (1990), and Sweller (1988) with academic DOIs.

## Machine Documentation & Legal
- [Full LLM Specification](https://glosa.page/llms-full.txt): Complete uncompressed documentation for AI agents.
- [Privacy Policy](https://glosa.page/privacy): Official data minimization and privacy disclosure.
- [Terms of Service](https://glosa.page/terms): Terms of use and subscription policies.