# Erla — AI-powered language practice app > Erla is a mobile language-learning app that helps people practice 22 languages through listening, reading, short videos, AI chat, and voice conversations. It is built on the comprehensible input method (Stephen Krashen's i+1 hypothesis): learners acquire language by understanding meaningful messages, not by drilling flashcards or memorizing grammar rules. Available on iOS and Android. ## Core pages - [Homepage](https://erla.app/): Practice 22 languages with AI — listen, read, watch, chat, and talk. - [Blog](https://erla.app/blog/): Research-backed articles on language acquisition, comprehensible input, and app-based learning. - [Privacy Policy](https://erla.app/privacy-policy): How Erla handles user data. - [Terms](https://erla.app/terms): Terms of service. ## Language pages Each page explains how to practice that language with Erla and what native content is available. - [Learn English](https://erla.app/learn/english) - [Learn Spanish](https://erla.app/learn/spanish) - [Learn French](https://erla.app/learn/french) - [Learn German](https://erla.app/learn/german) - [Learn Italian](https://erla.app/learn/italian) - [Learn Portuguese](https://erla.app/learn/portuguese) - [Learn Dutch](https://erla.app/learn/dutch) - [Learn Swedish](https://erla.app/learn/swedish) - [Learn Norwegian](https://erla.app/learn/norwegian) - [Learn Danish](https://erla.app/learn/danish) - [Learn Finnish](https://erla.app/learn/finnish) - [Learn Polish](https://erla.app/learn/polish) - [Learn Czech](https://erla.app/learn/czech) - [Learn Hungarian](https://erla.app/learn/hungarian) - [Learn Greek](https://erla.app/learn/greek) - [Learn Turkish](https://erla.app/learn/turkish) - [Learn Romanian](https://erla.app/learn/romanian) - [Learn Croatian](https://erla.app/learn/croatian) - [Learn Slovak](https://erla.app/learn/slovak) - [Learn Serbian](https://erla.app/learn/serbian) - [Learn Ukrainian](https://erla.app/learn/ukrainian) - [Learn Russian](https://erla.app/learn/russian) ## Featured articles - [What Is Comprehensible Input?](https://erla.app/blog/what-is-comprehensible-input): The science behind natural language learning, Krashen's input hypothesis, and the i+1 formula. - [AI Conversation Practice](https://erla.app/blog/ai-conversation-practice): How AI tutors enable pressure-free speaking practice. - [AI Tutor vs Human Teacher](https://erla.app/blog/ai-tutor-vs-teacher-comparison): When each approach works best. - [Why Can't I Understand Native Speakers?](https://erla.app/blog/why-cant-i-understand-native-speakers): Why listening comprehension lags other skills and how to fix it. - [Shy Learner AI Tutor](https://erla.app/blog/shy-learner-ai-tutor): Practicing speaking without fear of judgment. - [Babbel Alternative](https://erla.app/blog/babbel-alternative): How Erla compares to Babbel. - [Busuu Alternative for Busy Learners](https://erla.app/blog/busuu-alternative-busy-learners): Short-session language practice. - [Memrise Alternative](https://erla.app/blog/memrise-alternative): Beyond flashcard-based learning. - [Free Duolingo Alternative](https://erla.app/blog/free-duolingo-alternative): A different approach to gamified language learning. - [Free Rosetta Stone Alternative](https://erla.app/blog/free-rosetta-stone-alternative): Immersion-style practice on a budget. ## Key facts - 22 supported languages: English, Spanish, French, German, Italian, Portuguese, Dutch, Swedish, Norwegian (Bokmål), Danish, Finnish, Polish, Czech, Hungarian, Greek, Turkish, Romanian, Croatian, Slovak, Serbian (Latin script), Ukrainian, Russian. - Platforms: iOS and Android. - Methodology: comprehensible input (Krashen's input hypothesis), not flashcards or grammar drills. - Five practice modes: Listen (natural speech), Read (short stories), Watch (short videos), Chat (AI text tutor), Talk (AI voice tutor). - Every sentence can be tapped for a full translation, word-by-word breakdown, and grammar explanation. - Designed for short daily sessions (5–10 minutes) with adaptive i+1 difficulty. - Offline mode available after downloading language packs. - Site is available in 22 localized versions (see sitemap at https://erla.app/sitemap.xml). ## Contact - Email: a@justonedev.co - Website: https://erla.app/