On usedby, 20 companies use AppZen and 26 use Tabs. No company is listed with both yet.Latest check Oct 8, 2026: 46 of 46 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 AppZen, Tabs, or both
Every company with a public proof for at least one of the two tools.
20
use only AppZen
0
companies use both
26
use only Tabs
20 companies use only AppZen, 26 use only Tabs and 0 use both, out of the 46 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.
AppZen
TabsWhat customers report
Results as the vendor or the customer published them, with the source and the date.
AppZen
No reviewed story for AppZen yet.
Tabs
36% faster time to payment, reduced from 72 to 46 days
Oscilar
Vendor case study, tabs.com, captured Oct 8, 2026
10 hours saved per month across billing, accounting, and collections workflows
Tavily
Vendor case study, tabs.com, captured Oct 8, 2026
Questions about AppZen and Tabs
Which is used more, AppZen or Tabs?
Tabs has more customers on usedby: 26 against 20 for AppZen.
Do companies use both AppZen and Tabs?
usedby has not found a company with a confirmed or observed line on both AppZen and Tabs yet.
Who uses AppZen?
20 companies on usedby, each with the public page that shows it. See who uses AppZen.
Who uses Tabs?
26 companies on usedby, each with the public page that shows it. See who uses Tabs.
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.