On usedby, 35 companies use Ada and 43 use Decagon. 1 company uses both, including Square. Ada leads among the Fintech & Payments companies on usedby that use either tool.Latest check Oct 7, 2026: 70 of 78 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 Ada, Decagon, or both
Every company with a public proof for at least one of the two tools.
34
use only Ada
1
company uses both
42
use only Decagon
34 companies use only Ada, 42 use only Decagon and 1 uses both, out of the 77 companies on usedby that use at least one of them.
Where it lands
Newest customers
We have not started tracking changes for Ada yet.
Where it lands
Newest customers
We have not started tracking changes for Decagon yet.
Who uses both
Companies with a confirmed or observed line on both tools.
| Company |
|---|
 Square |
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
Ada
DecagonWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Ada
By 2026, that number had climbed to 77%
Dott
Vendor case study, ada.cx, published May 21, 2026
Melodie is involved in about 85% of Deezer's support contacts
Deezer
Vendor case study, ada.cx, published Aug 17, 2026
Decagon
Avoided the need to hire over 35 additional agents while managing growing inquiry volumes
NG.CASH
Vendor case study, decagon.ai, published Jul 28, 2026
ticket resolution time improved up to 34%
Notion
Vendor case study, decagon.ai, published Jul 28, 2026
Questions about Ada and Decagon
Which is used more, Ada or Decagon?
Decagon has more customers on usedby: 43 against 35 for Ada.
Do companies use both Ada and Decagon?
Yes. 1 company uses both on usedby, including Square.
Who uses Ada?
35 companies on usedby, each with the public page that shows it. See who uses Ada.
Who uses Decagon?
43 companies on usedby, each with the public page that shows it. See who uses Decagon.
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.