Fathom vs Granola: who uses which
Customers, public proof and the companies that use both.
On usedby, 10 companies use Fathom and 20 use Granola. 1 company uses both, including Zapier. Granola leads among the DevTools & Infrastructure companies on usedby that use either tool.Latest check Oct 4, 2026: 20 of 30 public lines checked. Counts include every proof level, job-post signals included. Companies named on both have a confirmed or observed line on each side.
Who uses Fathom, Granola, or both
Every company with a public proof for at least one of the two tools.
9
use only Fathom
1
company uses both
19
use only Granola
9 companies use only Fathom, 19 use only Granola and 1 uses both, out of the 29 companies on usedby that use at least one of them.
Who uses both
Companies with a confirmed or observed line on both tools.
| Company |
|---|
 Zapier |
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
Fathom
GranolaWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Fathom
No reviewed story for Fathom yet.
Granola
Zapier saves 830+ hours per month with Granola
Zapier
Vendor case study, granola.ai, captured Oct 4, 2026
Questions about Fathom and Granola
Which is used more, Fathom or Granola?
Granola has more customers on usedby: 20 against 10 for Fathom.
Do companies use both Fathom and Granola?
Yes. 1 company uses both on usedby, including Zapier.
Who uses Fathom?
10 companies on usedby, each with the public page that shows it. See who uses Fathom.
Who uses Granola?
20 companies on usedby, each with the public page that shows it. See who uses Granola.
How does usedby count customers?
A company counts when a public page shows it: a vendor's customer page, a case study, a press release or a job post, most saved with a dated capture. Every line is a customer, at one of three proof levels: confirmed, observed or signal (a job post, the weakest). A company is named as using both tools when its lines on both are confirmed or observed.