Grow on X by replying to the right posts
Winnow scores every post in your X timeline as you scroll and highlights the few worth replying to with local arithmetic, no AI, nothing leaves your browser. Age, views, replies and your own keywords go into the score; everything below your threshold just dims. Free tier: unlimited scanning, 10 highlighted posts a day. Pro: $29 one-time, no subscription. Filter posts and grow faster on X.
Winnow launched on Product Hunt and has 13 upvotes and 7 comments so far.
This tool is described as free to use.