Lumin
Security First · Full-File Encryption · Private and Controlled
Luguang uses file-level encryption. All data backed up to the USB drive is encrypted and can only be accessed through the dedicated app after decryption.
Key Features
🔐 All files are encrypted before being stored on the USB drive
🧩 One File, One Key (each file encrypted independently)
👤 Account registration required
🔒 App lock supported (authentication required to enter)
📂 Supports backup of photos, videos, documents, and audio files
🛡 If the USB drive is lost, data cannot be accessed directly
Performance Notes
Because encryption is applied during the writing process:
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Write speed is slightly slower than the Lite version
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Files must be decrypted before being viewed
This is the necessary computational cost of stronger data protection.
Ideal For
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Storing work files, contracts, certificates, or other sensitive documents
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Users with high privacy and security requirements
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Anyone who wants data to remain protected even if the USB drive is lost
v1.0.88
Update Date: Jun 01, 2026
What’s New:
1. Device setup now only allows selecting external USB drives, preventing accidental selection of local phone storage.
2. USB drive setup now requires selecting the root directory of the USB drive, reducing configuration errors.
3. Fixed an issue where encrypted thumbnails could occasionally fail to decrypt and display properly, improving browsing stability.
4. Added a Version Status card, allowing you to quickly check your current edition and membership status.
v1.0.87
Update Date: May 25, 2026
What’s New:
1. Optimized the USB drive file storage structure to further improve file access and reading speed.
2. Improved the automatic backup deduplication algorithm to reduce duplicate backups.
v1.0.85
Release Date: May 14, 2026
v1.0.91
Update Date: Jun 01, 2026
What’s New:
✨ New USB Drive Health Check
Is your USB drive really reliable?
With the new Health Check feature, you can quickly evaluate your USB drive's:
• Read and write performance
• Stability during operation
• Data integrity
• Storage reliability
Whether you're backing up files, storing photos, or transferring important data, Health Check helps identify potential issues early and keeps your data safer.
v1.0.90
Update Date: May 24, 2026
What’s New:
1. Added folder selection support for quickly selecting photos and videos by folder.
v1.0.89
Update Date: May 14, 2026
What’s New:
1. Optimized the USB drive file storage structure to further improve file access and reading speed.
2. Improved the automatic backup deduplication algorithm to reduce duplicate backups.
3. Enhanced the file upload UI for a more convenient USB drive upload experience.
v1.0.88
Update Date: May 5, 2026
What’s New:
Optimize performance and resolve slow USB drive read/write speeds on certain smartphone brands.
v1.0.87
Update Date: May 3, 2026
What’s New:
1. Brand-New UI
A fully redesigned interface with a cleaner look and smoother interactions..
2. Album Switching
Browse and switch across all system albums (Camera, Screenshots, Download, etc.) for faster access to your media.
3. USB Binding Fix
Fixed an issue where a USB drive could not be rebound after formatting, improving device reliability.
4. Smart Time-Based Organization
Photos and videos are automatically grouped by year and month for easier navigation.
5. Enhanced Media Details
View file name, size, capture time, and location (for photos with GPS metadata) at a glance.
6. Improved File Management
Added breadcrumb navigation for quick and intuitive directory switching.