Atlas Runa vs Kotrin

Atlas Runa is a language-learning app that brings reading, vocabulary review, listening, writing, and speaking practice into a study hub shaped by each learner’s progress. It supports Italian, Spanish, Mandarin Chinese, Japanese, and German, with learning aimed at levels A1 through C2. Recommendations draw on a learner’s level, saved words, lookups, review history, missed forms, writing attempts, and goals. Its reading library offers level-matched material, tappable definitions, flashcard saving, quizzes, and EPUB imports. Writing exercises provide AI corrections and grammar explanations, then prompt learners to rewrite their work. A browser extension connects reading and video activity with the learner’s progress; for YouTube, it can prepare vocabulary cards, estimate difficulty, and offer a post-watch AI chat. The free plan includes listening to 10 articles per day; Premium adds unlimited listening with comprehension and additional AI-supported practice. Atlas Runa runs as a web service and browser extension, with no mobile apps. A free plan is available, and the pricing note lists paid access from $13.99/mo and a 5-day trial.

Kotrin is an AI-powered app for learning Japanese, with connected practice in speaking, listening, reading, and writing aligned to JLPT levels. Its lesson library advertises more than 5,000 lessons for beginner through advanced learners. Practice includes everyday exchanges set in places such as shops and cafés, as well as AI role plays with back-and-forth responses. Lessons cover hiragana through Jōyō kanji, including stroke-order and recognition practice. Kotrin builds a language profile across 1,536 dimensions and adapts difficulty, focus, and scenarios to progress. Its AI-powered content system can create personalized Japanese lessons from a word or idea. The app is listed for iOS, Android, macOS, and Windows, but is currently available only in English. The free plan includes selected lessons, personalized learning, quizzes, and vocabulary practice, subject to daily practice limits. Pro is listed at $10 a month or $90 a year, both tax excluded, and another Pro listing is ¥1,650 a month. Subscriptions renew automatically unless cancelled; monthly and yearly purchases are non-refundable under the stated terms.