What Connected Papers does well
Connected Papers is a research exploration tool. Give it one seed paper and it renders a visual graph of the most related work using co-citation analysis. It's excellent for literature reviews and quickly understanding a field's landmark papers. It does not provide email alerts, topic monitoring, or digest delivery — those are not its use case.
Visual graph exploration
Landmark + derivative paper identification
Free tier (5 graphs/month) + Pro tier
Excellent for onboarding to a new field