Lingo Journal

Many language learners can understand what they read or hear —but struggle to write or speak naturally in real life. This app helps you turn everyday thoughts into real language ability through daily journaling in your target language. With AI-assisted feedback, you refine grammar, expression, and usage as you write about your own life — transforming passive knowledge into confident, usable communication. Key Features • Multilingual Journaling Write journals in Chinese, English, Spanish, Japanese, Korean, French, or German, or naturally mix multiple languages in a single entry. • AI Writing Feedback Receive grammar corrections and suggestions for more natural, native-level expressions in your target language. Multiple revision styles support different learning goals. • Context-Aware Translation Translate ideas based on meaning and context, helping you learn how thoughts are naturally expressed — not word by word. • Expression Breakdown & Explanation Entries are broken into meaningful language chunks, with clear explanations of how words and phrases work together in real usage. • Vocabulary Collection & Flashcards Save useful words and expressions from your writing and review them anytime with built-in flashcards. • Flexible Journal Organization Use tags and categories to organize journals, reflect on progress, and build consistent writing habits. Sign in & Data Sync Sign in securely with Sign in with Apple. All journal data is stored privately in your own iCloud account and synced across devices using CloudKit Private Database. The developer cannot access your personal content. Subscription & Usage AI-assisted features include a free usage quota. Once the free quota is used, a subscription is required to continue AI-powered feedback. All subscriptions are handled exclusively through Apple In-App Purchase. Model Access Free users access the standard AI model. Subscribers unlock more advanced models for higher-quality feedback, translations, and explanations. Privacy & Data Your journal content is used only to provide AI-powered language assistance. All data remains private and is never shared publicly. Terms of Use: https://lingojournal.vercel.app/terms Privacy Policy: https://lingojournal.vercel.app/privacy