Blue J vs Rillet: who uses which
Customers, public proof and the companies that use both.
On usedby, 27 companies use Blue J and 20 use Rillet. No company is listed with both yet.Latest check Oct 8, 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 Blue J, Rillet, or both
Every company with a public proof for at least one of the two tools.
27
use only Blue J
0
companies use both
20
use only Rillet
27 companies use only Blue J, 20 use only Rillet 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 8, 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.
Blue J
RilletWhat customers report
Results as the vendor or the customer published them, with the source and the date.
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
Rillet
Postscript's close is now consistently 3 days.
Postscript
Vendor case study, rillet.com, captured Oct 8, 2026
Questions about Blue J and Rillet
Which is used more, Blue J or Rillet?
Blue J has more customers on usedby: 27 against 20 for Rillet.
Do companies use both Blue J and Rillet?
usedby has not found a company with a confirmed or observed line on both Blue J and Rillet yet.
Who uses Blue J?
27 companies on usedby, each with the public page that shows it. See who uses Blue J.
Who uses Rillet?
20 companies on usedby, each with the public page that shows it. See who uses Rillet.
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.