Language Byte
Daily Language Learning
Free · In-App Purchases · Designed for iPhone. Not verified for macOS.
NEW: iPhone companion with 18 on-device AI features! Conversation practice, grammar drills, story mode—all private, all offline. 24 languages. 7-day free trial.
Learn languages on your Apple Watch and go deeper with on-device AI on iPhone. Language Byte combines wrist-based micro-learning with 18 AI-powered practice tools—all running privately on your device. No cloud. No account. No data collected.
WHAT'S INCLUDED
• 24 languages: English, Spanish, French, German, Italian, Japanese, Chinese, Korean, Portuguese, Thai, Arabic, Hindi, Russian, Turkish, Dutch, Swedish, Polish, Vietnamese, Indonesian, Greek, Hebrew, Ukrainian, Swahili, and Haitian Creole
• 85+ language pair directions
• English → Spanish free; Premium unlocks all languages + AI features ($6.99/month or $49.99/year)
• SM-2 spaced repetition with context-aware scheduling
• Personalized learning paths that adapt to your style
• CEFR levels (A1–C2) with example sentences in context
• iCloud sync for progress across Watch and iPhone
APPLE WATCH
• Digital Crown navigation for hands-free study
• Auto-advance mode for passive learning during workouts or commutes
• 6 quiz modes: Quick Drill, Listening, Focus Mistakes, Mixed, Timed, and Custom
• Pronunciation practice with real-time feedback
• Daily Word of the Day and customizable goals
• Watch face complications: vocabulary, XP progress, and reviews due
• Siri Shortcuts: "Start Study," "Start Review," "Start Quiz"
• Interactive quiz notifications with XP rewards
• On-device search—no internet needed
IPHONE — ON-DEVICE AI (Premium)
18 AI-powered tools running entirely on your device:
• AI Conversation & Voice Chat: Practice speaking in real-world scenarios
• Grammar Drills & Sentence Building: Targeted exercises with AI explanations
• Story Mode: Interactive branching stories with comprehension choices
• Adaptive Quiz: AI targets your weak areas with dynamic difficulty
• Cultural Notes, Idiom of the Day, Word Map, Study Plan, Journal, Flashcard Generator
• Translation Assistant, Situational Vocabulary, Language Comparison
• Apple Translate integration (on-device, no internet required)
On-Device AI: Premium subscribers can download an optional AI language model (~2 GB) to unlock advanced features like conversation practice, grammar drills, story mode, and personalized study plans. The AI runs entirely on your device—no data is sent to external servers. A Wi-Fi connection is recommended for the initial model download.
STAY MOTIVATED
• XP, 20 levels, streaks, and level-up celebrations
• Achievements and milestones
• Weekly review, analytics dashboard, and learning insights
• CSV export for progress tracking
• Location-based vocabulary suggestions (Premium)
PRICING
• English → Spanish: Free
• Premium: $6.99/month or $49.99/year
• 7-day free trial for new subscribers
• Unlocks all 24 languages + 18 AI features
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Language Byte 4.0 — iPhone Companion with On-Device AI
NEW: Full iPhone companion app with 18 AI-powered learning tools:
• AI Conversation & Voice Chat — Practice speaking with on-device AI
• Grammar Drills & Sentence Building — Targeted exercises with AI feedback
• Story Mode — Interactive branching stories in your target language
• Adaptive Quiz — AI identifies and targets your weak areas
• Cultural Notes, Idiom of the Day, Word Map, Study Plan, Journal
• Flashcard Generator — Create cards from any text
• Apple Translate integration (on-device, no internet required)
All AI runs entirely on your device. No internet needed after model download. No data collected.
Also in this update:
• 24 languages with 85+ language pair directions
• Accessibility: High Contrast and Color-Blind Friendly modes
• Improved iCloud sync between Watch and iPhone
• Optimized memory management and faster app launch
• Privacy manifests for iOS 17+ compliance
Premium: $6.99/mo or $49.99/yr. 7-day free trial.
The developer, Kai Wen Digital, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Size
- 37.1 MB
- Category
- Education
- Compatibility
Requires iOS 17.4 or later.
- iPhone
Requires iOS 17.4 or later. - Mac
Requires macOS 14.4 or later and a Mac with Apple M1 chip or later. - Apple Watch
Requires watchOS 11.4 or later.
- iPhone
- Languages
English and 23 more
- English, Arabic, Dutch, French, German, Greek, Haitian, Hebrew, Hindi, Indonesian, Italian, Japanese, Korean, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swahili, Swedish, Thai, Turkish, Ukrainian, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Annual Premium 59,99 €
- Monthly Premium 7,99 €
- Provider
Kevin Franklin
- Kevin Franklin has not identified itself as a trader for this app. If you are a consumer in the European Economic Area, consumer rights do not apply to agreements between you and the provider.
- Copyright
- © Kai Wen 2025
