All tools
Finding customers · 4 of 110 stories
Substack
Who uses it, and for what
One row per story. The grade is for the claim that the business uses this tool, not for its revenue.
| Story | What it does there | When | Cost stated | Grade | Source |
|---|---|---|---|---|---|
| Magnific | The founder's newsletter with the same tutorials and experiments, a second audience channel before launch. newsletter Latent Space | since February 2023 | C | Startup Founder Stories: Javi López, Magnific, 0 to $10M ARR | |
| SEObot | Newsletter channel where the founder reposts the same content as on X. | C | Starter Story podcast, 11 November 2025: I Make $250K/Month From 20 Apps, transcript on StationLM | ||
| Notis | The founder's weekly newsletter about building Notis. | C | Notis, About Flo page, read 15 October 2026 | ||
| EasyGen | The founder's newsletter on Substack recommended EasyGen and offered its readers a first month for US$0.99. How to AI newsletter | C | EasyGen home page, read 16 October 2026 |
Grade A: the tool's maker or a payment processor confirms the use. Grade B: an independent report, or the tool is visible in public code. Grade C: the founder or the company says so.
Used in the same businesses
Other tools in the stories above, with the number of stories that share both.
Other tools for the same job
Finding customers, with the number of stories that use each.