We started tracking Newsletters in 2021 with a handful of launches. Now there are 417 products in the index. The growth curve and engagement data are below.
Five years of Newsletters launch data. Volume, engagement, and the products that stood out.
We started tracking Newsletters in 2021 with a handful of launches. Now there are 417 products in the index. The growth curve and engagement data are below.
| Quarter | Launches | Avg Interest Score | Top Product |
|---|---|---|---|
| Q1 2026 | 7 | 43 | LaterAI |
| Q1 2025 | 8 | 128 | letterpal |
| Q2 2025 | 7 | 89 | Podpod |
| Q3 2025 | 13 | 43 | Cubox AI 3.0 |
| Q4 2025 | 6 | 172 | MailTester.AI |
| Q1 2024 | 20 | 234 | MarketingIdeas.com |
| Q2 2024 | 8 | 100 | LaterOn.email |
| Q3 2024 | 24 | 157 | CuratedLetters |
| Q4 2024 | 7 | 91 | Smashing |
| Q1 2023 | 34 | 136 | Internet Is Beautiful |
| Q2 2023 | 31 | 129 | Life-Changing Concepts |
| Q3 2023 | 49 | 145 | Off-Grid |
| Q4 2023 | 34 | 142 | Daily Nugts |
| Q1 2022 | 20 | 148 | Ausum |
| Q2 2022 | 14 | 187 | Ghost 5.0 |
| Q3 2022 | 14 | 202 | Workspaces |
The Newsletters category has been cooling over the past 6 years of tracked data. Total launches went from 92 in 2021 to 7 in 2026.
Average engagement ratio across all Newsletters launches sits at 0.26. Products above that threshold tend to serve a real, specific need. Products below it often entered a crowded market without sufficient differentiation.
Current year launches compared to the same period last year. Positive means more products launching. Negative means the category cooled. Neither is inherently good or bad. A mature category with fewer but better launches is often healthier than one flooding the market with clones.
Launch volume drops but engagement per product rises. Fewer builders entering, but the ones that do find a more receptive audience. That's an opportunity signal. We flag it when we see it.
We report what happened. We don't predict. Five years of data shows patterns, but markets surprise people for a living.
Three common reasons. The market consolidated around winners. The technology matured and stopped generating new startups. Or builder attention shifted to adjacent categories. Usually it's a combination.
Volume without engagement is saturation. Engagement without volume is opportunity. Check which one you're looking at.