ASAPP vs Sierra: who uses which
Customers, public proof and the companies that use both.
On usedby, 6 companies use ASAPP and 50 use Sierra. No company is listed with both yet. Sierra leads among the Fintech & Payments companies on usedby that use either tool.Latest check Oct 7, 2026: 56 of 56 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 ASAPP, Sierra, or both
Every company with a public proof for at least one of the two tools.
6
use only ASAPP
0
companies use both
50
use only Sierra
6 companies use only ASAPP, 50 use only Sierra and 0 use both, out of the 56 companies on usedby that use at least one of them.
Where it lands
Newest customers
No new customer since tracking started on October 7, 2026.
Where it lands
Newest customers
Who uses both
Companies with a confirmed or observed line on both tools.
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
ASAPP
SierraWhat customers report
Results as the vendor or the customer published them, with the source and the date.
ASAPP
No reviewed story for ASAPP yet.
Sierra
Nearly 1,000 hours per month returned to exception handling and high-value work
RunBuggy
Vendor case study, sierra.ai, published Feb 3, 2026
Questions about ASAPP and Sierra
Which is used more, ASAPP or Sierra?
Sierra has more customers on usedby: 50 against 6 for ASAPP.
Do companies use both ASAPP and Sierra?
usedby has not found a company with a confirmed or observed line on both ASAPP and Sierra yet.
Who uses ASAPP?
6 companies on usedby, each with the public page that shows it. See who uses ASAPP.
Who uses Sierra?
50 companies on usedby, each with the public page that shows it. See who uses Sierra.
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.