Spellbook vs Supio: who uses which
Customers, public proof and the companies that use both.
On usedby, 27 companies use Spellbook and 24 use Supio. No company is listed with both yet.Latest check Oct 8, 2026: 51 of 51 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 Spellbook, Supio, or both
Every company with a public proof for at least one of the two tools.
27
use only Spellbook
0
companies use both
24
use only Supio
27 companies use only Spellbook, 24 use only Supio and 0 use both, out of the 51 companies on usedby that use at least one of them.
Where it lands
Newest customers
No new customer since tracking started on October 8, 2026.
Where it lands
No industry is known for these customers yet.
Newest customers
We have not started tracking changes for Supio yet.
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.
Spellbook
SupioWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Spellbook
Spellbook probably helps me bill an extra hour a day. Maybe more.
KMSC Law LLP
Vendor case study, spellbook.com, captured Oct 8, 2026
How Elevare Law uses Spellbook
Elevare Law
Vendor case study, spellbook.com, captured Oct 8, 2026
Supio
Phillips Law Group achieved 17% higher settlement values
Phillips Law Group
Vendor case study, supio.com, published Jul 14, 2026
Each case earns 2.7x what the firm would have netted on a referral
Phillips Law Group
Vendor case study, supio.com, published Oct 7, 2026
Questions about Spellbook and Supio
Which is used more, Spellbook or Supio?
Spellbook has more customers on usedby: 27 against 24 for Supio.
Do companies use both Spellbook and Supio?
usedby has not found a company with a confirmed or observed line on both Spellbook and Supio yet.
Who uses Spellbook?
27 companies on usedby, each with the public page that shows it. See who uses Spellbook.
Who uses Supio?
24 companies on usedby, each with the public page that shows it. See who uses Supio.
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.