The System Design Newsletter
Investor Due Diligence Report
substackTechnology
Download my system design playbook on newsletter signup for FREE.
250K
10.6K paid
+0.2%
+1.6%
net growth
Pricing
$17.5/mo
$150/yr annual option
$134K
10.6K paid subs
$134K/mo – $134K/mo(±0%)
0.7
67.1
0.03%
(comments + likes) / subscribers
Weekly
1.8 posts/week
79/100
Consistent (~4.0d avg)
| Newsletter | Subscribers | Weekly Growth | Price | Platform |
|---|---|---|---|---|
| Big Data Energy⚡️ | 43K | N/A | $9.97/mo | substack |
| Better Engineers | 20K | N/A | $20/mo | substack |
| Guerre di Rete | 20K | N/A | Free | substack |
| Briefinn | 20K | N/A | Free | substack |
| Month | Subscribers | Est. Revenue | Change |
|---|---|---|---|
| Feb 2026 | 220K | $117,810 | — |
| Mar 2026 | 226K | $121,023 | +2.7% |
| Apr 2026 | 231K | $123,706.8 | +2.2% |
| May 2026 | 236K | $126,378 | +2.2% |
| Jun 2026 | 241K | $129,061.8 | +2.1% |
| Jul 2026 | 245K | $131,203.8 |
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
250K subscribers — above the 2K category median for first paid tier
Has paid tier
Active paid subscription offering
Peer monetization
100% of 7 similar-size peers in Technology have paid tiers
Pricing position
$17.5/mo vs $5/mo category median (676 newsletters)
| Date | Monthly | Annual |
|---|---|---|
| Mar 2026 | $18 | $150 |
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 | 58/100 | 30% |
| Paid Subscriber Ratio | 100/100 | 25% |
| Growth Consistency | 83/100 | 15% |
| Publishing Consistency | 67/100 | 10% |
| 18K |
| N/A |
| Free |
| substack |
| ~0% |
| Aug 2026 | 249.5K | $133,610.4 | ~0% |
Revenue Model
Active paid subscription tier