Ivo vs Spellbook: who uses which
Customers, public proof and the companies that use both.
On usedby, 25 companies use Ivo and 27 use Spellbook. No company is listed with both yet.Latest check Oct 8, 2026: 52 of 52 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 Ivo, Spellbook, or both
Every company with a public proof for at least one of the two tools.
25
use only Ivo
0
companies use both
27
use only Spellbook
25 companies use only Ivo, 27 use only Spellbook and 0 use both, out of the 52 companies on usedby that use at least one of them.
Where it lands
Newest customers
We have not started tracking changes for Ivo yet.
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.
Ivo
SpellbookWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Ivo
Cut review time from weeks to hours
Sunrider
Vendor case study, ivo.ai, captured Oct 7, 2026
Large GC and construction agreements: Saving 4–5+ hours per review
Vantage Data Centers
Vendor case study, ivo.ai, captured Oct 7, 2026
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
Questions about Ivo and Spellbook
Which is used more, Ivo or Spellbook?
Spellbook has more customers on usedby: 27 against 25 for Ivo.
Do companies use both Ivo and Spellbook?
usedby has not found a company with a confirmed or observed line on both Ivo and Spellbook yet.
Who uses Ivo?
25 companies on usedby, each with the public page that shows it. See who uses Ivo.
Who uses Spellbook?
27 companies on usedby, each with the public page that shows it. See who uses Spellbook.
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.