Insider One vs Smartly: who uses which
Customers, public proof and the companies that use both.
On usedby, 40 companies use Insider One and 9 use Smartly. No company is listed with both yet. Insider One leads among the Fashion & Apparel companies on usedby that use either tool.Latest check Oct 8, 2026: 49 of 49 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 Insider One, Smartly, or both
Every company with a public proof for at least one of the two tools.
40
use only Insider One
0
companies use both
9
use only Smartly
40 companies use only Insider One, 9 use only Smartly and 0 use both, out of the 49 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
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.
Insider One
SmartlyWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Insider One
How Slazenger gained 49x ROI in only 8 weeks
Slazenger
Vendor case study, insiderone.com, published Aug 31, 2026
$310K in incremental revenue
Safat Home
Vendor case study, insiderone.com, published Jul 10, 2023
Smartly
No reviewed story for Smartly yet.
Questions about Insider One and Smartly
Which is used more, Insider One or Smartly?
Insider One has more customers on usedby: 40 against 9 for Smartly.
Do companies use both Insider One and Smartly?
usedby has not found a company with a confirmed or observed line on both Insider One and Smartly yet.
Who uses Insider One?
40 companies on usedby, each with the public page that shows it. See who uses Insider One.
Who uses Smartly?
9 companies on usedby, each with the public page that shows it. See who uses Smartly.
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.