Creative ChatGPT Prompts
Investor Due Diligence Report
substackAI
AI for people who want more than boring productivity tricks. Prompts and tools for financial success, reflection, strategy and philosophy.
53K
3.5K paid
-0.9%
Insufficient data
28 of 30 days needed
Pricing
$8/mo
$60/yr annual option
$19K
3.5K paid subs
$19K/mo – $19K/mo(±0%)
0.7
16.1
0.03%
(comments + likes) / subscribers
Weekly
1.7 posts/week
69/100
Consistent (~4.2d avg)
| Newsletter | Subscribers | Weekly Growth | Price | Platform |
|---|---|---|---|---|
| AI Supremacy | 214K | +0.3% | $15/mo | substack |
| AI First Designer | 214K | N/A | $5.99/mo | substack |
| Marily’s AI Product Academy Newsletter | 209K | N/A | $5/mo | substack |
| Artificial Intelligence Made Simple | 196K | +0.3% | $10/mo | substack |
| Month | Subscribers | Est. Revenue | Change |
|---|---|---|---|
| Feb 2026 | 46K | $24,426 | — |
| Mar 2026 | 55K | $27,744.75 | +13.6% |
| Apr 2026 | 55K | $27,744.75 | ~0% |
| May 2026 | 54K | $27,240.3 | ~0% |
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
53K subscribers — above the 3K category median for first paid tier
Has paid tier
Active paid subscription offering
Peer monetization
100% of 50 similar-size peers in AI have paid tiers
Pricing position
$8/mo vs $6/mo category median (635 newsletters)
| Date | Monthly | Annual |
|---|---|---|
| Mar 2026 | $8 | $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.
| Component | Score | Weight |
|---|---|---|
| Engagement Rate | 34/100 | 30% |
| Paid Subscriber Ratio | 90/100 | 25% |
| Growth Consistency | 100/100 | 15% |
| Publishing Consistency | 78/100 | 10% |
| DataExpert.io Newsletter |
| 171K |
| N/A |
| $10/mo |
| substack |
Revenue Model
Active paid subscription tier