Brandwave

CartStack vs Rejoiner:Which is more popular?

In September 2026, Rejoiner had more branded searches than CartStack among cart recovery platforms worldwide. Rejoiner had about 880 branded searches, while CartStack had 480. Rejoiner made up 1.4% of all cart recovery platform searches we track, and CartStack accounted for 0.77%. When we asked ChatGPT and Google AI Overviews about cart recovery platforms, CartStack appeared in three of the five answers and Rejoiner in none.

Among cart recovery platforms worldwide in September 2026

Who do people search for more?

Rejoiner, about 83% more searches than CartStack

Rejoiner 880 searchesCartStack 480 searches

Who does AI mention more?

CartStack, mentioned in 3 of 5 answers, Rejoiner in 0

CartStack in 3 of 5Rejoiner in 0 of 5

Who does AI recommend more?

CartStack, the only one of the two named

CartStack first in 3Rejoiner never named

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Top cart recovery platforms in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, CartStack was mentioned in three out of five: in two of the three ChatGPT answers and in one of the two Google AI Overviews. Rejoiner did not appear in any of the five answers.

Most recommended by AI

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

  1. Omnisend1st
  2. CartStack2nd
  3. Recart–
  4. Upstack–
  5. Rejoiner–
  6. CartHook–

Mentioned by AI

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

  • Omnisend5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • CartStack3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Recart0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Upstack0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Rejoiner0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • CartHook0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about cart recovery platforms

5 answers
  • Asked ChatGPT

    “Which cart recovery platform should I use?”

    1. 1Omnisend
  • Asked ChatGPT

    “What are the best cart recovery platforms?”

    1. 1Omnisend
    2. 2CartStack
  • Asked ChatGPT

    “What's the best cart recovery platform for abandoned checkout?”

    1. 1Omnisend
    2. 2CartStack
  • Searched Google, AI Overview

    “abandoned cart software”

    1. 1Omnisend
    2. 2CartStack
  • Searched Google, AI Overview

    “email cart recovery”

    1. 1Omnisend

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 CartStack or Rejoiner more popular in search?

This chart shows how often people search Google for CartStack and Rejoiner by name. Each line represents a brand's share of searches for all six cart recovery platforms we track, month by month, from English-language searches worldwide.

CartStack and Rejoiner among cart recovery platforms worldwide, by month

Share of searches by month for Rejoiner, CartStack. The figures are in the table below the chart.

View monthly share of searches table
MonthOmnisendRecartUpstackRejoinerCartStackCartHook
Oct 202581.3%10.8%4.8%1.4%1.2%0.43%
Nov 202580.5%10.7%5.9%1.4%0.96%0.52%
Dec 202579.5%13%4.7%1.4%0.94%0.51%
Jan 202676.9%12.5%6.8%1.7%1.4%0.74%
Feb 202679.9%10.7%5.7%1.7%1.4%0.51%
Mar 202681%10.8%4.7%1.4%1.4%0.52%
Apr 202677.8%12.7%5.6%1.7%1.7%0.61%
May 202678%12.7%5.6%1.7%1.4%0.62%
Jun 202678.9%12.9%4.7%1.7%1.1%0.76%
Jul 202681.8%10.9%4%2.1%0.79%0.43%
Aug 202677.2%15.4%4.6%1.4%0.91%0.5%
Sep 202679.6%13%4.7%1.4%0.77%0.51%

How has the CartStack and Rejoiner comparison changed over the last 12 months?

3 findings
  • Rejoiner was ahead of CartStack in every measured month of the 12 months ending September 2026.
  • Across the 12 months ending September 2026, CartStack’s share of searches among cart recovery platforms worldwide moved from 1.2% to 0.77%, and its estimated monthly branded searches moved from 720 to 480.
  • Across the 12 months ending September 2026, Rejoiner’s share of searches among cart recovery platforms worldwide held steady at 1.4%, and its estimated monthly branded searches held steady at 880.

How did search popularity change for cart recovery platforms worldwide in September 2026?

1 change
  1. Estimated monthly branded searches for CartStack worldwide fell 33.3% over 12 measured months, from 720 to 480 in September 2026.

How are branded searches counted?

2 search terms

Brandwave collects information about searches that people make online using CartStack’s and Rejoiner’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.

CartStack

1 branded search term

  • cartstack

Rejoiner

1 branded search term

  • rejoiner

How the Brand Demand Index is measured

Other head-to-heads among cart recovery platforms

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