Ink Vault
Investor Due Diligence Report
substackCulture
drawings from nightclubs and warzones.
Investor Due Diligence Report
drawings from nightclubs and warzones.
9K
900 paid
N/A
-0.0%
net churn
Pricing
$5/mo
$60/yr annual option
$4K
900 paid subs
$4K/mo – $4K/mo(±0%)
7.5
58.0
0.73%
(comments + likes) / subscribers
Bi-weekly
0.5 posts/week
59/100
Variable (~16.0d avg)
| Newsletter | Subscribers | Weekly Growth | Price | Platform |
|---|---|---|---|---|
| Dracula Daily | 228K | -0.2% | $8/mo | substack |
| Freethink Media | 106K | N/A | Free | substack |
| Charles Eisenstein | 83K | -0.6% | $7/mo | substack |
| Sherif M. Awad (Film Critic) | 76K | N/A | $20/mo | substack |
| Month | Subscribers | Est. Revenue | Change |
|---|---|---|---|
| Feb 2026 | 7K | $3,150 | — |
| Mar 2026 | 7.5K | $3,375 | +7.1% |
| May 2026 | 8.5K | $3,825 | +13.3% |
| Jun 2026 | 9K | $4,050 | +5.9% |
| Jul 2026 | 9K | $4,050 | ~0% |
| Aug 2026 | 9K | $4,050 |
Platform Dependency
Hosted on substack subdomain
Publishing Consistency
Variable publishing frequency
Key Person
Single-author publication — key-person dependency
Audience Concentration
Consistent engagement across posts
Subscriber threshold
9K subscribers — above the 1K category median for first paid tier
Has paid tier
Active paid subscription offering
Peer monetization
52% of 158 similar-size peers in Culture have paid tiers
Pricing position
$5/mo vs $5/mo category median (2153 newsletters)
| Date | Monthly | Annual |
|---|---|---|
| Mar 2026 | $5 | $60 |
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 | 53/100 | 30% |
| Paid Subscriber Ratio | 90/100 | 25% |
| R.F. Kuang |
| 71K |
| +0.8% |
| Free |
| substack |
| ~0% |
| Sep 2026 | 9K | $4,050 | ~0% |
| Oct 2026 | 9K | $4,050 | ~0% |
Revenue Model
Active paid subscription tier