Compare Substack writers

Up to five side by side: followers, growth, paid band, rank, and the publications that recommend more than one of them. Sponsors use the last part to see which audiences overlap.

Eric TopolGround Truths
Followers313,076
Last 7 daysfrom Nov 7
Last 30 daysfrom Nov 30
Subscribers (rounded)217K+
Paid subscribersThousands
Best board spot#8 Science Bestsellers
Recommended by77
New recommenders, 30 days+10
Recommends9
Tracked sinceOct 31, 2026

Followers by day

Eric Topol

305k310k315k320k Oct 31Nov 4Nov 8Nov 12 12 more days to fill this frame 313,076

Each panel has its own scale. Daily history starts on the writer's first reading.

When their recommendations started

Eric Topol

Dec 24MarJunSepDecMarJunSep

Live recommendations by month started, last 24 months, Substack's dates. Outlined months are incomplete: Substack lists only the 50 newest recommenders.