Your Local Epidemiologist in California

Investor Due Diligence Report

by The YLE Admin Team

substackHealth

Translating the ever-changing science of public health for Californians so you can take action for your community’s health.

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Key Metrics

Subscribers

20K

2K paid

Verified

Weekly Growth

~0%

Subscriber count is a platform estimate

Revenue Analysis

Pricing

$6/mo

$60/yr annual option

Est. Monthly Revenue

$10K

2K paid subs

$10K/mo – $10K/mo(±0%)

Engagement

Avg Comments/Post

4.0

Avg Likes/Post

58.0

Engagement Rate

0.31%

(comments + likes) / subscribers

Quality & Publishing

Audience Quality Score

68Fair

0100

Publishing Pace

Previously Weekly

1.0 posts/week

Publishing Consistency

69/100

Consistent (~7.6d avg)

Competitive Landscape (Health)

Newsletter	Subscribers	Weekly Growth	Price	Platform
Granted	558K	N/A	Free	substack
Better Brain by Dr. Julie	185K	+0.3%	$10/mo	substack
Extra Focus • ADHD Newsletter	70K	N/A	$8/mo	substack
The Habit Healers	66K	+2.4%	$15/mo	substack

Revenue Trajectory

Estimated monthly revenue over time

Month	Subscribers	Est. Revenue	Change
Feb 2026	20K	$9,540	—
Mar 2026	20K	$9,540	~0%

Risk Assessment

Key risk factors for due diligence

High

Platform Dependency

Hosted on substack subdomain

Medium

Publishing Consistency

Variable publishing frequency

Medium

Key Person

Single-author publication — key-person dependency

Low

Revenue Model

Active paid subscription tier

Monetization Readiness

Monetization status

Subscriber threshold

20K subscribers — above the 1K category median for first paid tier

Has paid tier

Active paid subscription offering

Peer monetization

100% of 91 similar-size peers in Health have paid tiers

Pricing position

$6/mo vs $6/mo category median (908 newsletters)

Pricing History

Date	Monthly	Annual
Mar 2026	$6	$60

Data Quality

Report Data QualityFull - All metrics available

Subscriber Confidenceverified

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	49/100	30%
Paid Subscriber Ratio	90/100	25%