Brandwave

TransUnion vs Zest AI:Which is more popular?

In September 2026, TransUnion had more branded searches than Zest AI among credit scoring platforms worldwide. TransUnion had about 1 million branded searches, while Zest AI had 2,400. TransUnion made up 18% of all credit scoring platform searches we track, and Zest AI accounted for 0.04%. When we asked ChatGPT and Google AI Overviews about credit scoring platforms, TransUnion appeared in three of the four answers and Zest AI in two. Zest AI was mentioned before TransUnion in two out of three answers.

Among credit scoring platforms worldwide in September 2026

Who do people search for more?

TransUnion, about 417 searches for every 1 for Zest AI

TransUnion 1M searchesZest AI 2.4K searches

Who does AI mention more?

TransUnion, mentioned in 3 of 4 answers, Zest AI in 2

TransUnion in 3 of 4Zest AI in 2 of 4

Who does AI recommend more?

Zest AI, named ahead of TransUnion in 2 of 3 answers

Zest AI first in 2TransUnion first in 1

Follow TransUnion vs Zest AI and get free monthly updates on what changed

By continuing you'll get index updates and occasional product news from Brandwave. Unsubscribe any time. Privacy

Track your brand against a rival →

Top credit scoring platforms in ChatGPT and Google AI Overviews

In three ChatGPT questions and one Google AI Overview, TransUnion was mentioned in three out of four: in two of the three ChatGPT answers and in the Google AI Overview. Zest AI was mentioned in two out of four: in two of the three ChatGPT answers, but not in the Google AI Overview. Zest AI was listed before TransUnion in two out of three answers.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. FICO1st
  2. Experian2nd
  3. Equifax3rd
  4. Zest AI4th
  5. TransUnion5th
  6. VantageScore6th

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • FICO4 of 4Named in 3 of 3 ChatGPT answersNamed in 1 of 1 Google answers
  • Experian3 of 4Named in 2 of 3 ChatGPT answersNamed in 1 of 1 Google answers
  • Equifax3 of 4Named in 2 of 3 ChatGPT answersNamed in 1 of 1 Google answers
  • TransUnion3 of 4Named in 2 of 3 ChatGPT answersNamed in 1 of 1 Google answers
  • VantageScore3 of 4Named in 2 of 3 ChatGPT answersNamed in 1 of 1 Google answers
  • Zest AI2 of 4Named in 2 of 3 ChatGPT answersNamed in 0 of 1 Google answers

See every answer about credit scoring platforms

4 answers

Brands are shown in the order each answer named them. The survey took place in the United States on October 19, 2026.

Is TransUnion or Zest AI more popular in search?

This chart shows how often people search Google for TransUnion and Zest AI by name. Each line represents a brand's share of searches for all six credit scoring platforms we track, month by month, from English-language searches worldwide.

TransUnion and Zest AI among credit scoring platforms worldwide, by month

Share of searches by month for TransUnion, Zest AI. The figures are in the table below the chart.

View monthly share of searches table
MonthExperianEquifaxTransUnionFICOVantageScoreZest AI
Oct 202552.5%23.5%19.1%4.7%0.13%0.07%
Nov 202549.4%27%18%5.4%0.12%0.06%
Dec 202549.9%27.3%18.2%4.5%0.1%0.05%
Jan 202653%23.7%19.3%3.9%0.1%0.06%
Feb 202653%23.7%19.3%3.9%0.09%0.06%
Mar 202650.3%27.5%18.3%3.7%0.18%0.05%
Apr 202652.5%23.5%19.1%4.7%0.16%0.06%
May 202654.9%24.6%16.4%4%0.13%0.05%
Jun 202654.9%24.6%16.4%4%0.11%0.04%
Jul 202655.3%24.8%16.5%3.3%0.11%0.04%
Aug 202652.5%23.5%19.1%4.7%0.1%0.05%
Sep 202649.3%27%18%5.4%0.27%0.04%

How has the TransUnion and Zest AI comparison changed over the last 12 months?

3 findings
  • TransUnion was ahead of Zest AI in every measured month of the 12 months ending September 2026.
  • Across the 12 months ending September 2026, TransUnion’s share of searches among credit scoring platforms worldwide moved from 19.1% to 18%, and its estimated monthly branded searches moved from 1.2M to 1M.
  • Across the 12 months ending September 2026, Zest AI’s share of searches among credit scoring platforms worldwide moved from 0.07% to 0.04%, and its estimated monthly branded searches moved from 4.4K to 2.4K.

How did search popularity change for credit scoring platforms worldwide in September 2026?

2 changes

  1. In September 2026, TransUnion lost share of searches among credit scoring platforms worldwide, from 19.1% to 18%.

  2. Estimated monthly branded searches for Zest AI worldwide fell 45.5% over 12 measured months, from 4.4K to 2.4K in September 2026.

How are branded searches counted?

2 search terms

Brandwave collects information about searches that people make online using TransUnion’s and Zest AI’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.

TransUnion

1 branded search term

  • transunion

Zest AI

1 branded search term

  • zest ai

How the Brand Demand Index is measured

Other head-to-heads among credit scoring platforms

Creator with pink hair and a pink jacket

Put your own brand in this comparison

Brandwave tracks your branded demand next to the rival you actually watch, with your campaigns, spend and outcomes on the same timeline.

Start free