How popular isOneNote in search?

In August 2026, there were an estimated 1.2M branded searches for OneNote worldwide which is down 33.3% over the last 11 months. OneNote holds 61.5% estimated Share of Search among note taking apps worldwide and is ranked 1st of 4 competitors for search popularity. These are worldwide searches for English-language branded terms.

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Which note taking apps compete with OneNote?

OneNote against note taking apps worldwide, by month

Month	OneNote	Notion	Evernote	Obsidian
Oct 2025	66.7%	17.2%	13.4%	2.7%
Nov 2025	64.2%	17.4%	15.8%	2.6%
Dec 2025	57.7%	21.4%	17.4%	3.5%
Jan 2026	61.1%	20.3%	15%	3.7%
Feb 2026	64.8%	19.6%	13%	2.6%
Mar 2026	62.8%	22.1%	12.6%	2.5%
Apr 2026	63.3%	21.4%	12.7%	2.6%
May 2026	60.3%	22.4%	14.9%	2.4%
Jun 2026	62.3%	21.3%	12.6%	3.8%
Jul 2026	58.9%	23.1%	14.5%	3.6%
Aug 2026	61.5%	21.6%	12.4%	4.6%
Sep 2026	—	—	—	—

Rank	Brand	Share of Search	Estimated monthly branded searches	vs prior month	Share change
1, held 1st	OneNote Microsoft	61.5%	1.2M	+22%	+2.6 points
2, held 2nd	Notion	21.6%	428K	+9.2%	-1.5 points
3, held 3rd	Evernote	12.4%	246K	0%	-2.1 points
4, held 4th	Obsidian	4.6%	90.5K	+49.6%	+1 points

1.OneNote
61.5%
Held 1st. 1.2M estimated branded searches, +22% vs prior month. Share +2.6 points.
2.Notion
21.6%
Held 2nd. 428K estimated branded searches, +9.2% vs prior month. Share -1.5 points.
3.Evernote
12.4%
Held 3rd. 246K estimated branded searches, 0% vs prior month. Share -2.1 points.
4.Obsidian
4.6%
Held 4th. 90.5K estimated branded searches, +49.6% vs prior month. Share +1 points.

Compare search popularity between OneNote and its closest rivals

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

3 findings

Across the 11 months ending August 2026, estimated monthly branded searches for OneNote worldwide fell from 1.8M to 1.2M.
Across the 11 months ending August 2026, OneNote’s estimated Share of Search among note taking apps worldwide decreased from 66.7% to 61.5%.
Across the 11 months ending August 2026, OneNote’s estimated Share of Search among note taking apps worldwide peaked at 66.7% in October 2025 and was lowest at 57.7% in December 2025.

How did search popularity change for note taking apps worldwide in August 2026?

4 changes

In August 2026, OneNote gained estimated Share of Search among note taking apps worldwide, from 58.9% to 61.5%.
In August 2026, Obsidian gained estimated Share of Search among note taking apps worldwide, from 3.6% to 4.6%.
In August 2026, Evernote lost estimated Share of Search among note taking apps worldwide, from 14.5% to 12.4%.
In August 2026, Notion lost estimated Share of Search among note taking apps worldwide, from 23.1% to 21.6%.

How is OneNote measured?

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

1 branded search term