Unbiased Science
Investor Due Diligence Report
substackHealth
Empowering everyone to understand health science through patient, evidence-based explanations that respect both skepticism and nuance.
Investor Due Diligence Report
Empowering everyone to understand health science through patient, evidence-based explanations that respect both skepticism and nuance.
140K
11.9K paid
+0.4%
+2.2%
net growth
Pricing
$5/mo
$55/yr annual option
$50K
11.9K paid subs
$50K/mo – $50K/mo(±0%)
25.3
116.9
0.10%
(comments + likes) / subscribers
~2x per week
2.1 posts/week
72/100
Consistent (~3.4d avg)
| Newsletter | Subscribers | Weekly Growth | Price | Platform |
|---|---|---|---|---|
| 🌻 A Year of Mental Health | 58K | N/A | Free | substack |
| Brain Health Kitchen | 44K | N/A | $20/mo | substack |
| Dr. Michael Okun on Parkinson's & Brain Health | 11K | N/A | Free | substack |
| Dr. Corinne Menn | 8K | N/A | $8/mo | substack |
| Month | Subscribers | Est. Revenue | Change |
|---|---|---|---|
| Feb 2026 | 107K | $38,540.06 | — |
| Mar 2026 | 112K | $40,341 | +4.7% |
| Apr 2026 | 119K | $42,862.31 | +6.3% |
| May 2026 | 124K | $44,663.25 | +4.2% |
| Jun 2026 | 126.5K | $45,565.84 | +2.0% |
| Jul 2026 | 129K | $46,464.19 |
Platform Dependency
Hosted on substack subdomain
Publishing Consistency
Regular publishing schedule
Key Person
Single-author publication — key-person dependency
Audience Concentration
Consistent engagement across posts
Subscriber threshold
140K subscribers — above the 1K category median for first paid tier
Has paid tier
Active paid subscription offering
Peer monetization
93% of 15 similar-size peers in Health have paid tiers
Pricing position
$5/mo vs $5/mo category median (573 newsletters)
| Date | Monthly | Annual |
|---|---|---|
| Mar 2026 | $5 | $55 |
Disclaimer: This report is generated automatically based on publicly available data and proprietary estimation models. Estimated subscriber counts are derived from engagement patterns and should be verified through direct disclosure. Revenue estimates are based on known pricing and estimated paid subscriber counts. This report is for informational purposes only and should not be the sole basis for investment decisions.
| Component | Score | Weight |
|---|---|---|
| Engagement Rate | 65/100 | 30% |
| Paid Subscriber Ratio | 100/100 | 25% |
| Growth Consistency | 82/100 | 15% |
| Publishing Consistency | 73/100 | 10% |
| Brian’s Bullshit-Free Zone | 7K | N/A | $8/mo | substack |
| ~0% |
| Aug 2026 | 133K | $47,904.94 | +3.1% |
| Sep 2026 | 137K | $49,345.69 | +3.0% |
| Oct 2026 | 139.5K | $50,248.28 | ~0% |
Revenue Model
Active paid subscription tier