NCH Software updates the free version regularly. As long as you don’t upgrade to a major new version (e.g., v9 to v10) that changes the licensing model—which is rare—your free version continues to work.
From transcription forums (Reddit r/transcription, TranscribeTalk, etc.) and thousands of reviews: express scribe unlicensed basic free version
If you eventually find yourself working for a transcription agency or handling complex video files, the transition to the Pro version is seamless, as the interface remains exactly the same. NCH Software updates the free version regularly
While it supports AltoEdge pedals, it typically restricts the use of other popular pedals (like Infinity) unless upgraded. No Technical Support: express scribe unlicensed basic free version