I use scaled on web. Voyager can remember your sorts for different communities. I typically to use new for smaller communities and scaled for larger ones and the home feed.
Scaled takes smaller communities into account and bumps their posts up so they don't get buried by posts from larger communities with more engagement.
Edit: here are the descriptions:
Active (default): Calculates a rank based on the score and time of the latest comment, with decay over time.
Hot: Like active, but uses time when the post was published.
Scaled: Like hot, but gives a boost to less active communities