Common Room vs Warmly: who uses which
Customers, public proof and the companies that use both.
On usedby, 68 companies use Common Room and 30 use Warmly. No company is listed with both yet. Common Room leads among the DevTools & Infrastructure companies on usedby that use either tool.Latest check Oct 8, 2026: 98 of 98 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 Common Room, Warmly, or both
Every company with a public proof for at least one of the two tools.
68
use only Common Room
0
companies use both
30
use only Warmly
68 companies use only Common Room, 30 use only Warmly and 0 use both, out of the 98 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.
By industry
Which tool the companies on usedby use, by industry. Shares of the companies on usedby that use Common Room, Warmly or both: a share of the companies on usedby, not of the market.
Common Room onlyBothWarmly only
More common with Common Room
- DevTools & Infrastructure26 of the 26 DevTools & Infrastructure companies on usedby that use either tool use Common Room.
- Data & Analytics15 of the 15 Data & Analytics companies on usedby that use either tool use Common Room.
- Cybersecurity5 of the 5 Cybersecurity companies on usedby that use either tool use Common Room.
Source: confirmed and observed usedby lines. Job-post signals, the weakest proof level, are left out of these shares.
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
Common Room
WarmlyWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Common Room
Common Room was responsible for helping the sales org generate 26% of qualified leads
Apollo GraphQL
Vendor case study, commonroom.io, published Feb 20, 2024
7.5x seat expansion in under a year
Jasper
Vendor case study, commonroom.io, published Jun 4, 2026
Warmly
installed it on his Webflow site in about 30 seconds
ScaleU
Vendor case study, warmly.ai, captured Oct 8, 2026
A $40K deal closed in just 7 days
Behavioral Signals
Vendor case study, warmly.ai, captured Oct 8, 2026
Questions about Common Room and Warmly
Which is used more, Common Room or Warmly?
Common Room has more customers on usedby: 68 against 30 for Warmly.
Do companies use both Common Room and Warmly?
usedby has not found a company with a confirmed or observed line on both Common Room and Warmly yet.
Who uses Common Room?
68 companies on usedby, each with the public page that shows it. See who uses Common Room.
Who uses Warmly?
30 companies on usedby, each with the public page that shows it. See who uses Warmly.
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.