Fullstory vs Hex: who uses which
Customers, public proof and the companies that use both.
On usedby, 35 companies use Fullstory and 91 use Hex. 1 company uses both, including Duolingo. Hex leads among the DevTools & Infrastructure companies on usedby that use either tool.Latest check Nov 13, 2026: 126 of 126 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 Fullstory, Hex, or both
Every company with a public proof for at least one of the two tools.
34
listed for Fullstory only
1
company uses both
90
listed for Hex only
On usedby, 34 companies are listed for Fullstory only, 90 are listed for Hex only and 1 uses both, out of the 125 companies listed for at least one. An absent listing does not prove non-use.
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 |
|---|
 Duolingo |
By industry
Which tool the companies on usedby use, by industry. Shares of the companies on usedby that use Fullstory, Hex or both: a share of the companies on usedby, not of the market.
Listed for Fullstory onlyBothListed for Hex only
More common with Hex
- DevTools & Infrastructure13 of the 14 DevTools & Infrastructure companies on usedby that use either tool use Hex.
- Fintech & Payments6 of the 11 Fintech & Payments companies on usedby that use either tool use Hex.
- Artificial Intelligence7 of the 9 Artificial Intelligence companies on usedby that use either tool use Hex.
Source: every usedby line, from confirmed proofs to job-post signals (the weakest proof level).
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
Vendor facts checked: Fullstory, 0 of 5; Hex, 3 of 5. Missing facts remain unverified, not absent features.
FullstoryHexWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Fullstory
No reviewed story for Fullstory yet.
Hex
86% of recent Notebook Agent users aren't data scientists
Notion
Vendor case study, hex.tech, published Feb 18, 2026
running more tests at higher confidence with 50% less manual effort
The Zebra
Vendor case study, hex.tech, published Feb 18, 2026
Questions about Fullstory and Hex
Which is used more, Fullstory or Hex?
Hex has more customers on usedby: 91 against 35 for Fullstory.
Do companies use both Fullstory and Hex?
Yes. 1 company uses both on usedby, including Duolingo.
Who uses Fullstory?
35 companies on usedby, each with the public page that shows it. See who uses Fullstory.
Who uses Hex?
91 companies on usedby, each with the public page that shows it. See who uses Hex.
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.