How popular isOutlook in search?

Q: Who owns Outlook?

Outlook is owned by Microsoft. Brandwave also tracks Microsoft Copilot, GitHub Actions, GitHub Copilot, LinkedIn, Microsoft 365, Microsoft Azure, Microsoft Clarity, Microsoft Designer, Microsoft Dynamics 365, Microsoft Dynamics 365 Business Central, Microsoft Entra, Microsoft Forms, Microsoft Power BI, Microsoft PowerPoint, Microsoft Surface, Microsoft Teams, Microsoft Translator, Microsoft Visio, OneDrive, OneNote, Power Automate, Power BI, SharePoint and Xbox, owned by the same company, worldwide.

In August 2026, there were an estimated 68M branded searches for Outlook worldwide which is down 18.2% over the last 11 months. Outlook holds 88% estimated Share of Search among calendar apps worldwide and is ranked 1st of 7 competitors for search popularity. These are worldwide searches for English-language branded terms.

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Which calendar apps compete with Outlook?

Outlook against calendar apps worldwide, by month

Month	Outlook	Google Calendar	Apple Calendar	Fantastical	Motion	Reclaim.ai	Cron
Oct 2025	89.9%	9.9%	0.07%	0.04%	0.05%	0.02%	<0.01%
Nov 2025	91.6%	8.2%	0.05%	0.04%	0.05%	0.02%	<0.01%
Dec 2025	93%	6.8%	0.06%	0.04%	0.04%	0.02%	<0.01%
Jan 2026	89.9%	9.9%	0.07%	0.04%	0.06%	0.03%	<0.01%
Feb 2026	89.9%	9.9%	0.07%	0.04%	0.05%	0.02%	<0.01%
Mar 2026	89.9%	9.9%	0.05%	0.04%	0.05%	0.02%	<0.01%
Apr 2026	91.6%	8.2%	0.05%	0.04%	0.04%	0.02%	<0.01%
May 2026	91.6%	8.2%	0.05%	0.03%	0.04%	0.02%	<0.01%
Jun 2026	89.9%	9.9%	0.07%	0.04%	0.04%	0.01%	<0.01%
Jul 2026	89.9%	9.9%	0.07%	0.04%	0.04%	0.01%	<0.01%
Aug 2026	88%	11.8%	0.1%	0.04%	0.04%	0.02%	<0.01%
Sep 2026	—	—	—	—	—	—	—

Rank	Brand	Share of Search	Estimated monthly branded searches	vs prior month	Share change
1, held 1st	Outlook Microsoft	88%	68M	0%	-2 points
2, held 2nd	Google Calendar	11.8%	9.1M	+22.2%	+1.9 points
3, held 3rd	Apple Calendar	0.1%	74K	+49.5%	0 points
4, moved from 5th to 4th	Fantastical	0.04%	33.1K	+22.1%	0 pointsmoved from 5th to 4th
5, moved from 4th to 5th	Motion	0.04%	31.3K	+0.06%	0 pointsmoved from 4th to 5th
6, held 6th	Reclaim.ai	0.02%	14.8K	+49.5%	0 points
7, held 7th	Cron	<0.01%	880	-32.3%	0 points

1.Outlook
88%
Held 1st. 68M estimated branded searches, 0% vs prior month. Share -2 points.
2.Google Calendar
11.8%
Held 2nd. 9.1M estimated branded searches, +22.2% vs prior month. Share +1.9 points.
3.Apple Calendar
0.1%
Held 3rd. 74K estimated branded searches, +49.5% vs prior month. Share 0 points.
4.Fantastical
0.04%
Moved from 5th to 4th. 33.1K estimated branded searches, +22.1% vs prior month. Share 0 points.
5.Motion
0.04%
Moved from 4th to 5th. 31.3K estimated branded searches, +0.06% vs prior month. Share 0 points.
6.Reclaim.ai
0.02%
Held 6th. 14.8K estimated branded searches, +49.5% vs prior month. Share 0 points.
7.Cron
<0.01%
Held 7th. 880 estimated branded searches, -32.3% vs prior month. Share 0 points.

Compare search popularity between Outlook and its closest rivals

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

3 findings

Across the 11 months ending August 2026, estimated monthly branded searches for Outlook worldwide fell from 83.1M to 68M.
Across the 11 months ending August 2026, Outlook’s estimated Share of Search among calendar apps worldwide decreased from 89.9% to 88%.
Across the 11 months ending August 2026, Outlook’s estimated Share of Search among calendar apps worldwide peaked at 93% in December 2025 and was lowest at 88% in August 2026.

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

6 changes

In August 2026, Google Calendar gained estimated Share of Search among calendar apps worldwide, from 9.9% to 11.8%.
In August 2026, Outlook lost estimated Share of Search among calendar apps worldwide, from 89.9% to 88%.
In August 2026, Fantastical rose from 5th to 4th among calendar apps worldwide.
In August 2026, Motion fell from 4th to 5th among calendar apps worldwide.
Estimated monthly branded searches for Apple Calendar worldwide rose 22.3% over 11 measured months, from 60.5K to 74K in August 2026.
Estimated monthly branded searches for Cron worldwide fell 45% over 11 measured months, from 1.6K to 880 in August 2026.

How is Outlook measured?

Brandwave collects information about searches that people make online using Outlook’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