Seamless Cross-Device Experience
Modern life spans multiple devices. Your phone is with you on the go, your laptop at work, your tablet on the couch. Langou Cloud Sync ensures that no matter which device you're using, your input method experience is identical — your custom dictionary, learned typing patterns, and theme preferences follow you seamlessly.
Synced Dictionary
Your personal dictionary is the heart of your typing experience. Over time, Langou learns the words, names, and phrases you use most. With Cloud Sync:
- Custom words: Industry jargon, friend names, brand names, technical terms you frequently type
- Frequency ranking: Your most-used words appear first in suggestions, on every device
- Abbreviation expansions: Type "omw" → "On my way!" — synced everywhere
- Location-aware: Different dictionaries for different regions (e.g., simplified vs. traditional Chinese)
Typing Habits & Learning
Langou's machine learning model observes your typing patterns and adapts:
- Preferred styles: If you consistently use "Concise" for work chats and "Sweet" for your partner, the system learns these associations
- Correction patterns: When you frequently correct a certain suggestion, the system adjusts its predictions
- Emoji & sticker usage: Your most-used emojis are prioritized across devices
- Input speed optimization: Key press timing data helps optimize prediction latency
Preferences & Themes
Spent 30 minutes perfecting your keyboard layout and theme? Don't do it twice:
- Theme settings: All three built-in themes (Cyberpunk, Dark Mode, Minimal White) and any custom themes sync instantly
- Keyboard layout: QWERTY, 9-key, swipe preferences, key height, sound feedback — all synced
- Language settings: Preferred input methods (pinyin, handwriting, voice) and language order
- Accessibility settings: Font size, key spacing, high contrast mode — synced for consistent accessibility
Unlimited Access
All features are completely free across all your devices. Cloud Sync ensures:
- All features: Unlimited AI replies, all reply styles, priority processing — on every device
- All devices: Sync your settings and preferences to every device you own
- No limits: No daily caps, no device limits — use Langou freely everywhere
- Usage dashboard: Check your usage stats from any device in real-time
Security & Encryption
All synced data is end-to-end encrypted using AES-256. Your dictionary and typing habits are encrypted on-device before transmission. The server stores only encrypted payloads with no access to plaintext content. Two-factor authentication is available for account security. See our Security & Privacy page for full details.
Account Management
Full control over your data:
- Device management: View and remove connected devices from your account dashboard
- Data export: Download all your data as JSON or CSV at any time
- Selective sync: Choose what to sync — dictionary only? Themes only? Full sync? Your choice
- Account deletion: Delete your account and all associated data within 30 days
Learn about Context Awareness to see how Sync enhances your experience.