How to AI
Investor Due Diligence Report
substackAI
Stop feeling behind on AI. I test the tools on my own screen, then show you exactly where to click. Copy it, and be the one at work everyone asks about AI.
Investor Due Diligence Report
Stop feeling behind on AI. I test the tools on my own screen, then show you exactly where to click. Copy it, and be the one at work everyone asks about AI.
986K
22.2K paid
+1.0%
+4.7%
net growth
Pricing
$120/mo
$200/yr annual option
$832K
22.2K paid subs
$832K/mo – $832K/mo(±0%)
52.9
473.2
0.05%
(comments + likes) / subscribers
~2x per week
1.9 posts/week
89/100
Very Consistent (~3.7d avg)
| Newsletter | Subscribers | Weekly Growth | Price | Platform |
|---|---|---|---|---|
| One Useful Thing | 486K | +0.6% | $10/mo | substack |
| Sabrina Ramonov 🍄 | 300K | +2.2% | Free | substack |
| ChatGPT for Education | 257K | +2.2% | Free | substack |
| The Product Compass | 141K | N/A | $15/mo | substack |
| Month | Subscribers | Est. Revenue | Change |
|---|---|---|---|
| Feb 2026 | 284K | $271,575 | — |
| Mar 2026 | 390K | $372,937.5 | +37.3% |
| Apr 2026 | 478K | $457,087.5 | +22.6% |
| May 2026 | 605K | $510,487.5 | +11.7% |
| Jun 2026 | 736.5K | $621,412.5 | +21.7% |
| Jul 2026 | 834K | $703,687.5 |
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
986K subscribers — above the 3K category median for first paid tier
Has paid tier
Active paid subscription offering
Pricing position
$120/mo vs $5/mo category median (419 newsletters)
| Date | Monthly | Annual |
|---|---|---|
| Mar 2026 | $120 | $200 |
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 | 80/100 | 30% |
| Paid Subscriber Ratio | 100/100 | 25% |
| Growth Consistency | 94/100 | 15% |
| Publishing Consistency | 79/100 | 10% |
| Marcus on AI |
| 120K |
| +0.4% |
| $8/mo |
| substack |
| +13.2% |
| Aug 2026 | 900K | $759,375 | +7.9% |
| Sep 2026 | 943.5K | $796,087.5 | +4.8% |
| Oct 2026 | 976K | $823,500 | +3.4% |
Revenue Model
Active paid subscription tier