AppZen vs Blue J: who uses which
Customers, public proof and the companies that use both.
On usedby, 20 companies use AppZen and 27 use Blue J. No company is listed with both yet.Latest check Oct 7, 2026: 47 of 47 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 AppZen, Blue J, or both
Every company with a public proof for at least one of the two tools.
20
use only AppZen
0
companies use both
27
use only Blue J
20 companies use only AppZen, 27 use only Blue J and 0 use both, out of the 47 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
No new customer since tracking started on October 7, 2026.
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.
AppZen
Blue JWhat customers report
Results as the vendor or the customer published them, with the source and the date.
AppZen
No reviewed story for AppZen yet.
Blue J
this user saving 6–8 hours per week on tax research
R2 Advisors
Vendor case study, bluej.com, captured Oct 7, 2026
Time Saved Per Week: Up to 5 hours/user
McKonly & Asbury
Vendor case study, bluej.com, captured Oct 7, 2026
Questions about AppZen and Blue J
Which is used more, AppZen or Blue J?
Blue J has more customers on usedby: 27 against 20 for AppZen.
Do companies use both AppZen and Blue J?
usedby has not found a company with a confirmed or observed line on both AppZen and Blue J yet.
Who uses AppZen?
20 companies on usedby, each with the public page that shows it. See who uses AppZen.
Who uses Blue J?
27 companies on usedby, each with the public page that shows it. See who uses Blue J.
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.