While 3.3.7 was a minor update within the 3.3 series (which reached up to 3.3.10), these versions were characterized by:

: Users could save audio in MP3 , M4A , or OGG formats.

4K YouTube to MP3 version 3.3.7 is a legacy release of the popular desktop application designed to extract and convert audio from online video platforms. While newer versions (such as ) have since been released, the 3.3.x branch remains a notable part of the software's history, predating the current "Plus" branding transition. Core Functionality As of its release period, the application specialized in:

: The free version typically limits downloads to 15 per day, while the Pro License unlocks unlimited downloads, high-quality YouTube Music extraction, and concurrent threads. 4K YouTube to MP3 26.0.0.277 для Windows - Uptodown

: The ability to download entire playlists or channels rather than just single videos.