GitBook vs You.com: who uses which
Customers, public proof and the companies that use both.
On usedby, 37 companies use GitBook and 9 use You.com. 2 companies use both, including Amazon and Nvidia.Latest check Nov 13, 2026: 46 of 46 public lines checked. Counts include every proof level, job-post signals included. A company on both tools counts at any proof level, and a job post on one side is marked as such.
Who uses GitBook, You.com, or both
Every company with a public proof for at least one of the two tools.
35
listed for GitBook only
2
companies use both
7
listed for You.com only
On usedby, 35 companies are listed for GitBook only, 7 are listed for You.com only and 2 use both, out of the 44 companies listed for at least one. An absent listing does not prove non-use.
Where it lands
Recently publicly listed customers
No new public customer listing since tracking started on October 7, 2026.
Who uses both
Companies with a public line on both tools, at any proof level: the strongest proofs come first, and a job post is marked.
| Company | First public proof, You.com |
|---|---|
 Amazon | On or before Oct 2025 |
 Nvidia | — |
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
Vendor facts checked: GitBook, 5 of 6; You.com, 1 of 6. Missing facts remain unverified, not absent features.
GitBook
You.comWhat customers report
Results as the vendor or the customer published them, with the source and the date.
GitBook
How Mozilla.ai uses GitBook
Mozilla.ai
Vendor case study, gitbook.com, captured Nov 13, 2026
You.com
No reviewed story for You.com yet.
Questions about GitBook and You.com
Which is used more, GitBook or You.com?
GitBook has more customers on usedby: 37 against 9 for You.com.
Do companies use both GitBook and You.com?
Yes. 2 companies use both on usedby, including Amazon and Nvidia.
Who uses GitBook?
37 companies on usedby, each with the public page that shows it. See who uses GitBook.
Who uses You.com?
9 companies on usedby, each with the public page that shows it. See who uses You.com.
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 four proof levels: confirmed, declared by the company itself, observed or signal (a job post, the weakest). A company counts as using both tools when it has a line on each, at any level; the list shows the strongest proofs first and marks job posts.