Brandwave

G2 vs Referral Rock:Which is more popular?

In September 2026, G2 had more branded searches than Referral Rock among brand advocacy platforms worldwide. G2 had about 458,000 branded searches, while Referral Rock had 1,000. G2 made up 76.1% of all brand advocacy platform searches we track, and Referral Rock accounted for 0.17%. When we asked ChatGPT and Google AI Overviews about brand advocacy platforms, G2 and Referral Rock each appeared in two of the five answers. G2 and Referral Rock were each mentioned first in two of the four answers that named either.

Among brand advocacy platforms worldwide in September 2026

Who do people search for more?

G2, about 458 searches for every 1 for Referral Rock

G2 458K searchesReferral Rock 1K searches

Who does AI mention more?

Both were mentioned in 2 of 5 answers.

G2 in 2 of 5Referral Rock in 2 of 5

Who does AI recommend more?

Each is named first in 2 of 4 answers.

G2 first in 2Referral Rock first in 2

Follow G2 vs Referral Rock 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 brand advocacy platforms in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, G2 was mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. Referral Rock was mentioned in two out of five: in one of the three ChatGPT answers and in one of the two Google AI Overviews. G2 and Referral Rock were each listed first in two of the four answers that named either.

Most recommended by AI

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

  1. Influitive1st
  2. Referral Factory2nd
  3. DSMN83rd
  4. Referral Rock4th
  5. Birdeye5th
  6. Yotpo6th
  7. UserEvidence7th
  8. Extole8th
  9. G29th
  10. TrustRadius10th
  11. +1 more

Mentioned by AI

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

  • Influitive4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Birdeye3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Yotpo3 of 5Named in 1 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Referral Factory3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • G22 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Extole2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • DSMN82 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Referral Rock2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • UserEvidence2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • TrustRadius1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers

+1 more

See every answer about brand advocacy platforms

5 answers

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in the United States on October 20, 2026.

Is G2 or Referral Rock more popular in search?

This chart shows how often people search Google for G2 and Referral Rock by name. Each line represents a brand's share of searches for all 11 brand advocacy platforms we track, month by month, from English-language searches worldwide.

G2 and Referral Rock among brand advocacy platforms worldwide, by month

Share of searches by month for G2, Referral Rock. The figures are in the table below the chart.

View monthly share of searches table
MonthG2BirdeyeCapterraYotpoTrustRadiusExtoleDSMN8Referral RockReferral FactoryUserEvidenceInfluitive
Oct 202572.7%11.7%7.8%5.2%1%0.37%0.19%0.37%0.31%0.14%0.17%
Nov 202570.7%13.9%7.6%5.1%1%0.37%0.23%0.37%0.37%0.17%0.17%
Dec 202572.7%11.7%7.8%5.2%1%0.31%0.21%0.31%0.31%0.14%0.17%
Jan 202669.4%13.6%9.1%5%1.2%0.36%0.29%0.36%0.36%0.16%0.16%
Feb 202666.5%15.8%8.7%5.8%1.4%0.42%0.34%0.34%0.34%0.19%0.19%
Mar 202664.1%23%6.9%3.8%0.92%0.27%0.27%0.22%0.22%0.15%0.12%
Apr 202675.3%9.9%8.1%4.4%1.1%0.32%0.2%0.2%0.26%0.14%0.12%
May 202677.6%10.2%6.8%3.7%0.74%0.22%0.17%0.17%0.22%0.1%0.1%
Jun 202678.9%8.5%7%3.8%0.76%0.22%0.22%0.17%0.17%0.12%0.1%
Jul 202678.8%8.5%7%3.8%0.93%0.28%0.17%0.17%0.17%0.1%0.1%
Aug 202677.1%10.2%6.8%3.7%1.1%0.27%0.21%0.21%0.21%0.12%0.1%
Sep 202676.1%12.3%6.7%3%0.9%0.27%0.22%0.17%0.15%0.1%0.08%

How has the G2 and Referral Rock comparison changed over the last 12 months?

3 findings
  • G2 was ahead of Referral Rock in every measured month of the 12 months ending September 2026.
  • Across the 12 months ending September 2026, G2’s share of searches among brand advocacy platforms worldwide moved from 72.7% to 76.1%, and its estimated monthly branded searches moved from 376K to 458K.
  • Across the 12 months ending September 2026, Referral Rock’s share of searches among brand advocacy platforms worldwide moved from 0.37% to 0.17%, and its estimated monthly branded searches moved from 1.9K to 1K.

How did search popularity change for brand advocacy platforms worldwide in September 2026?

2 changes

  1. In September 2026, G2 lost share of searches among brand advocacy platforms worldwide, from 77.1% to 76.1%.

  2. In September 2026, Referral Rock rose from 9th to 8th among brand advocacy platforms worldwide.

How are branded searches counted?

3 search terms

Brandwave collects information about searches that people make online using G2’s and Referral Rock’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.

G2

2 branded search terms

  • g2
  • g2 reviews

Referral Rock

1 branded search term

  • referral rock

How the Brand Demand Index is measured

Other head-to-heads among brand advocacy 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