Investor Due Diligence Report
by Play Makes Us Human
Letters about the roles of play in human evolution, child development, culture, and daily living.
20K
2K paid
~0%
Subscriber count is a platform estimate
Insufficient data
11 of 30 days needed
Pricing
$5/mo
$50/yr annual option
$8K
2K paid subs
$8K/mo – $8K/mo(±0%)
11.5
38.5
0.25%
(comments + likes) / subscribers
Weekly
0.6 posts/week
31/100
Variable (~15.0d avg)
| Newsletter | Subscribers | Weekly Growth | Price | Platform |
|---|---|---|---|---|
| Narratively Academy | 27K | N/A | $15/mo | substack |
| The West Point History Professor | 22K | N/A | $8.5/mo | substack |
| Tech in Ed | 22K | N/A | Free | substack |
| The Future of Education | 19K | N/A | $5/mo | substack |
| Month | Subscribers | Est. Revenue | Change |
|---|---|---|---|
| Feb 2026 | 20K | $7,950 | — |
| Mar 2026 | 20K | $7,950 | ~0% |
Platform Dependency
Hosted on substack subdomain
Publishing Consistency
Irregular publishing pattern
Key Person
Single-author publication — key-person dependency
Audience Concentration
Consistent engagement across posts
Subscriber threshold
20K subscribers — above the 1K category median for first paid tier
Has paid tier
Active paid subscription offering
Peer monetization
100% of 44 similar-size peers in Education have paid tiers
Pricing position
$5/mo vs $14.13/mo category average (490 newsletters)
| Date | Monthly | Annual |
|---|---|---|
| Mar 2026 | $5 | $50 |
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.
Score based on available components only.
| Component | Score | Weight |
|---|---|---|
| Engagement Rate | 100/100 | 30% |
| Paid Subscriber Ratio | 90/100 | 25% |
| Publishing Consistency | 64/100 | 10% |
| Fab Fridays | 19K | N/A | Free | substack |
Revenue Model
Active paid subscription tier