If the application prompts for a purchase, it is often due to legacy code remaining in the software; however, the "Trial" period usually continues without time-based locking. How to Use MiniLyrics for Free

If you encounter compatibility issues with modern players like Spotify or the latest iTunes, consider these actively maintained alternatives: Top 14 free alternatives to MiniLyrics for Windows

Minilyrics was originally available as a with a paid license for full features. However, note:

He had tried everything to keep up. He’d scrolled through messy websites filled with pop-up ads just to find out what a singer meant in that one cryptic verse. Then, he found . It was like a digital scroll that unrolled in perfect sync with his music, highlighting each line as if the singer were reading over his shoulder.