While permanent "free" keys are rare, there are legitimate ways to use the software without a full purchase: 4DDiG Duplicate File Deleter * Price. * $24.95/Month. * Free. * $39.99/Month. 4DDiG Duplicate File Deleter for Windows - Uptodown

: Open 4DDiG Duplicate File Deleter on your Windows or Mac.

: Click the Key or Register icon, usually found in the top right corner of the main interface.

: ~$39.95 to $59.95, which is more cost-effective for yearly maintenance.

Specific student discounts of up to are often available on the 4DDiG Korean site or global student portals . How to Activate Your License Key

Once you receive your license email after purchasing from the official Tenorshare store, follow these steps to activate the software: