Storage and Diagnostics

Clear Storage Space

Manage the system space used by Lansenger under “Settings → Clear Storage Space”.

View Usage

The page shows the current system storage space used by Lansenger.

Cleanup Methods

• One-tap cleanup: Quickly clean all clearable data
• Categorized cleanup: Clean data by category
• Per-conversation cleanup: Clean files in chats individually by Direct Chat/Group Chat conversation

Chat File Cleanup

Files can be cleaned for individual Direct Chat or Group Chat conversations:

1. Enter conversation settings
2. Select files/images/videos to clean
3. Confirm cleanup

Clearing message history only affects the operator’s own view across devices. The other party’s/group members’ message history is unaffected, and the original data is retained in the cloud.

File Expiration

Enabled and configured with a validity period via the admin console.

• Files/images/videos past the validity period are marked as expired in the client
• Expired files cannot be viewed or downloaded
• The server retains the data and does not delete it
• Files favorited before expiration are unaffected
• Files saved to Cloud Drive before expiration are unaffected

Diagnostic Tools

• Windows: Network diagnostics, available at the top-right of the login page and Settings page
• Android: Local log forwarding, real-time log capture, network testing, sandbox export (available on login page and Settings → General)
• iOS: Network testing, log saving to device
• macOS/Linux: Not supported

Windows Network Diagnostics

1. Tap the diagnostics entry at the top-right of the login page or Settings page
2. The client automatically detects the current network status
3. A diagnostic report is generated (filename format: YYYYMMDDHHmmss.txt)
4. The report is automatically saved to the desktop

Diagnostics include: network adapter, connection status, IP address, subnet mask, gateway, and DNS.

Android Diagnostics

• Local log forwarding
• Real-time log capture
• Network testing
• Sandbox export

iOS Diagnostics

• Network testing
• Log saving to device

Follow Up Later

While not part of storage cleanup, the “Follow Up Later” feature helps manage pending messages to avoid missing important ones:

• Add conversations or messages to the “Follow Up Later” list (up to 100 items)
• Long-press/right-click a conversation → “Add to Follow Up Later”
• Tap an item in the “Follow Up Later” list to open the original conversation
• Long-press/right-click → “Mark as Handled” to remove it from the list