All tools
Keeping customers · 2 of 110 stories
Loops
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 |
|---|---|---|---|---|---|
| AudioPen | Sends the regular product update emails that keep existing users engaged. | C | AI Makers newsletter, 16 May 2023: 500 paying customers in 1 month | ||
| Vid.AI | Sends product and marketing emails. | C | Vid.AI privacy policy and terms, last updated 27 September 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
Keeping customers, with the number of stories that use each.