Brandwave

Knowt vs StudyStack:Which is more popular?

In September 2026, Knowt had more branded searches than StudyStack among flashcard apps worldwide. Knowt had about 301,000 branded searches, while StudyStack had 9,900. Knowt made up 2.6% of all flashcard app searches we track, and StudyStack accounted for 0.09%. When we asked ChatGPT and Google AI Overviews about flashcard apps, Knowt appeared in three of the five answers and StudyStack in none.

Among flashcard apps worldwide in September 2026

Who do people search for more?

Knowt, about 30 searches for every 1 for StudyStack

Knowt 301K searchesStudyStack 9.9K searches

Who does AI mention more?

Knowt, mentioned in 3 of 5 answers, StudyStack in 0

Knowt in 3 of 5StudyStack in 0 of 5

Who does AI recommend more?

Knowt, the only one of the two named

Knowt first in 3StudyStack never named

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Top flashcard apps in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Knowt was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. StudyStack 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. Anki1st
  2. Quizlet2nd
  3. Knowt3rd
  4. RemNote4th
  5. Brainscape5th
  6. Chegg–
  7. StudyStack–

Mentioned by AI

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

  • Quizlet5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Anki5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • RemNote4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Knowt3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Brainscape3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Chegg0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • StudyStack0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about flashcard apps

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 19, 2026.

Is Knowt or StudyStack more popular in search?

This chart shows how often people search Google for Knowt and StudyStack by name. Each line represents a brand's share of searches for all seven flashcard apps we track, month by month, from English-language searches worldwide.

Knowt and StudyStack among flashcard apps worldwide, by month

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

View monthly share of searches table
MonthQuizletAnkiCheggKnowtRemNoteBrainscapeStudyStack
Oct 202581%7.3%7.3%2.7%0.8%0.8%0.09%
Nov 202579.2%8.7%8.7%1.7%0.78%0.78%0.09%
Dec 202580.7%7.3%8.9%1.8%0.65%0.65%0.07%
Jan 202677.7%8.6%10.4%1.7%0.77%0.77%0.08%
Feb 202679%8.7%8.7%2.1%0.64%0.78%0.09%
Mar 202677.4%8.5%10.4%2.1%0.77%0.77%0.08%
Apr 202673.1%9.8%11.9%3.6%0.72%0.72%0.1%
May 202673.1%9.8%11.9%3.6%0.72%0.72%0.06%
Jun 202668.2%13.7%13.7%2.2%1.2%0.82%0.06%
Jul 202652.6%19.3%23.7%2.1%1.4%0.78%0.05%
Aug 202667.9%13.7%13.7%2.7%1.2%0.67%0.09%
Sep 202679.7%8.7%7.2%2.6%1.2%0.53%0.09%

How has the Knowt and StudyStack comparison changed over the last 12 months?

3 findings
  • Knowt was ahead of StudyStack in every measured month of the 12 months ending September 2026.
  • Across the 12 months ending September 2026, Knowt’s share of searches among flashcard apps worldwide moved from 2.7% to 2.6%, and its estimated monthly branded searches held steady at 301K.
  • Across the 12 months ending September 2026, StudyStack’s share of searches among flashcard apps worldwide held steady at 0.09%, and its estimated monthly branded searches held steady at 9.9K.

How did search popularity change for flashcard apps worldwide in September 2026?

0 changes

Neither Knowt nor StudyStack moved beyond provider rounding among flashcard apps in September 2026.

How are branded searches counted?

2 search terms

Brandwave collects information about searches that people make online using Knowt’s and StudyStack’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.

Knowt

1 branded search term

  • knowt

StudyStack

1 branded search term

  • studystack

How the Brand Demand Index is measured

Other head-to-heads among flashcard apps

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