Brandwave

How popular isNotion?

In September 2026, people searched for Notion by name about 429,000 times worldwide, a 10.2% decrease from the previous year. These searches made up 1.7% of all global knowledge base software searches, placing Notion sixth out of seven brands. When we asked both ChatGPT and Google AI Overviews about knowledge base software, Notion appeared in all answers and was the most recommended of the seven.

Search and AI answers in September 2026

Notion is the sixth most searched of 7 competitors and the most recommended in AI answers.

  1. ProProfsShare of searches 65%Mentioned in 1 of 5 AI answersPlace in AI recommendations 5th
  2. Document360Share of searches 15.8%Mentioned in 4 of 5 AI answersPlace in AI recommendations 2nd
  3. HelpjuiceShare of searches 10.4%Mentioned in 0 of 5 AI answersPlace in AI recommendations –
  4. KnowledgeOwlShare of searches 3.6%Mentioned in 0 of 5 AI answersPlace in AI recommendations –
  5. NotionShare of searches 1.7%Mentioned in 5 of 5 AI answersPlace in AI recommendations 1st

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Top knowledge base software in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Notion appeared in all five answers. Notion is the most recommended of the seven.

Most recommended by AI

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

  1. Notion1st
  2. Document3602nd
  3. Zendesk Guide3rd
  4. Guru4th
  5. ProProfs5th
  6. Helpjuice–
  7. KnowledgeOwl–

Mentioned by AI

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

  • Notion5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Document3604 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Zendesk Guide3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Guru3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • ProProfs1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Helpjuice0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • KnowledgeOwl0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about knowledge base software

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 21, 2026.

Which knowledge base software compete with Notion?

Notion against knowledge base software worldwide, by month

Share of searches by month for ProProfs, Document360, Helpjuice, KnowledgeOwl, Zendesk Guide, Notion. The figures are in the table below the chart.

View monthly share of searches table
MonthProProfsDocument360HelpjuiceKnowledgeOwlZendesk GuideNotionGuru
Oct 202554.6%19.9%16.2%3.9%2.5%1.5%1.5%
Nov 202560.1%18%14.6%2.9%2.2%1.1%1.1%
Dec 202553.2%19.4%19.4%2.9%2.6%1.1%1.4%
Jan 202657.1%17%17%3.3%2.6%1.5%1.5%
Feb 202659.1%17.6%14.4%3.5%2.3%1.6%1.6%
Mar 202658.5%17.4%14.2%3.4%2.6%1.9%1.9%
Apr 202660.7%18.1%12%3.6%2.4%1.6%1.6%
May 202666.8%13.2%10.8%3%2.2%2.2%1.8%
Jun 202662.4%15.2%12.4%3.4%2.5%2%2%
Jul 202664%15.5%10.2%3.5%2.5%2.1%2.1%
Aug 202664.8%15.7%10.4%3.6%2.1%1.7%1.7%
Sep 202665%15.8%10.4%3.6%2.1%1.7%1.4%

  1. 1.ProProfs

    65%

    Held 1st. 18.1K estimated branded searches, 0% vs prior month. Share +0.2 points.

  2. 2.Document360

    15.8%

    Held 2nd. 4.4K estimated branded searches, 0% vs prior month. Share +0.1 points.

  3. 3.Helpjuice

    10.4%

    Held 3rd. 2.9K estimated branded searches, 0% vs prior month. Share 0 points.

  4. 4.KnowledgeOwl

    3.6%

    Held 4th. 1K estimated branded searches, 0% vs prior month. Share 0 points.

  5. 5.Zendesk Guide

    2.1%

    Held 5th. 590 estimated branded searches, 0% vs prior month. Share 0 points.

  6. 6.Notion

    1.7%

    Moved from 7th to 6th. 480 estimated branded searches, 0% vs prior month. Share 0 points.

  7. 7.Guru

    1.4%

    Moved from 6th to 7th. 390 estimated branded searches, -18.8% vs prior month. Share -0.3 points.

Compare popularity between Notion and its closest rivals

Every comparison with Notion

65 comparisons

How has branded search demand for Notion changed worldwide over the last 12 months?

3 findings
  • Across the 12 months ending September 2026, estimated monthly branded searches for Notion worldwide fell from 477K to 429K.
  • Across the 12 months ending September 2026, Notion’s share of searches among knowledge base software worldwide peaked at 2.2% in May 2026 and was lowest at 1.1% in November 2025.
  • Across the 12 months ending September 2026, Notion rose from 7th to 6th among knowledge base software worldwide.

How did search popularity change for knowledge base software worldwide in September 2026?

6 changes

  1. ProProfs’ share of searches among knowledge base software worldwide has gained ground for 3 months in a row, from 62.4% to 65% in September 2026.

  2. Document360’s share of searches among knowledge base software worldwide has gained ground for 3 months in a row, from 15.2% to 15.8% in September 2026.

  3. In September 2026, Notion rose from 7th to 6th among knowledge base software worldwide.

  4. In September 2026, Guru fell from 6th to 7th among knowledge base software worldwide.

  5. Estimated monthly branded searches for Helpjuice worldwide fell 56.1% over 12 measured months, from 6.6K to 2.9K in September 2026.

  6. Estimated monthly branded searches for Zendesk Guide worldwide fell 41% over 12 measured months, from 1K to 590 in September 2026.

How are Notion’s branded searches counted?

8 search terms

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

  • knowledge base notion
  • notion ai
  • notion ai meeting notes
  • notion app
  • notion calendar
  • notion database
  • notion knowledge base
  • notion meeting notes

Do you work for Notion? To request corrections or removal please contact us via our support page and we will be happy to assist.

How the Brand Demand Index is measured

Where does Notion compete?

Notion is ranked in 12 competitor sets. Each share is worked out among that set's brands, so it differs from set to set.
Competitor setRankShare of searchesRanking
Calendar apps4th of 80.07%Show ranking
Team collaboration platforms8th of 100.64%Show ranking
Document collaboration platforms6th of 60.9%Show ranking
Project management software8th of 121.3%Show ranking
Team productivity platforms8th of 91.5%Show ranking
Note taking apps6th of 92.4%Show ranking
Internal knowledge management platforms3rd of 79.1%Show ranking
Task management apps5th of 84.6%Show ranking
AI knowledge base tools2nd of 911.3%Show ranking
Meeting notes apps8th of 90.32%Show ranking
No-code database platforms6th of 80.59%Show ranking
Knowledge base software6th of 71.7%Shown above
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