English Language Lab
Investor Due Diligence Report
substackEducation
Stop sounding like a student and start sounding like a professional!
1K
50 paid
N/A
Pricing
$15/mo
$100/yr annual option
$465
50 paid subs
$465/mo – $465/mo(±0%)
0.3
0.7
0.10%
(comments + likes) / subscribers
Previously ~5x per week
5.8 posts/week
93/100
Very Consistent (~1.3d avg)
| Newsletter | Subscribers | Weekly Growth | Price | Platform |
|---|---|---|---|---|
| AlgoMaster Newsletter | 149K | +0.4% | $29/mo | substack |
| All About Psychology | 123K | +3.5% | $5/mo | substack |
| The Next Big Idea Club Book of the Day Newsletter | 90K | N/A | $10/mo | substack |
| System Design Classroom | 58K | N/A | $8/mo | substack |
| Month | Subscribers | Est. Revenue | Change |
|---|---|---|---|
| Mar 2026 | 200 | $130.2 | — |
| Apr 2026 | 1K | $651 | +400.0% |
Platform Dependency
Uses substack platform
Publishing Consistency
Regular publishing schedule
Key Person
Single-author publication — key-person dependency
Revenue Model
Active paid subscription tier
Subscriber threshold
1K subscribers — below the 2K category median (based on 251 newsletters)
Has paid tier
Active paid subscription offering
Peer monetization
100% of 194 similar-size peers in Education have paid tiers
Pricing position
$15/mo vs $5/mo category median (489 newsletters)
| Date | Monthly | Annual |
|---|---|---|
| Apr 2026 | $15 | $100 |
| Mar 2026 | $10 | $70 |
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 | 32/100 | 30% |
| Paid Subscriber Ratio | 57/100 | 25% |
| Javarevisited Newsletter | 57K | N/A | $5/mo | substack |