B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Dated
8%
8% -- email client market share for Outlook (2020)
Outlook held an 8% email client market share based on 1.37 billion email opens worldwide between April 1, 2020 and May 1, 2020.
- Automatic image blocking may cause over- or under-representation for some email clients and mobile devices
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
8%
Unit
Percentage
Data Vintage
2020
Entity
Sample Size
1,370,000,000
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
95
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
emailclientmarketshare.com
Primary
Tier A
https://emailclientmarketshare.com/ ↗
Source Article
Email Client Market Share
#1 Gmail 38% +9.72
#2 Apple iPhone 30% -6.95
#3 Apple Mail 9% -0.22
#4 Outlook 8% -0.96
#5 Yahoo! Mail 4% -0.94
#6 Apple iPad 2% -0.2
#7 Samsung Mail 1% -0.32
#8 Google Android 1% -0.14
#9 Outlook.com 1% -0.12
#10 Windows Live Mail 0% -0.01
Email client market share
Email client usage worldwide, col…
Original Research
emailclientmarketshare.com
· Original study ↗
Methodology
Collected from 1.37 billion email opens worldwide by Litmus Email Analytics.
Methodology documented
Trend Over Time
| Period | Value | Change |
|---|---|---|
| 2012-02 | 43% | |
| 2013 | 17% | -60.5% |
| 2014-03 | 14% | -17.6% |
| 2015 | 8% | -42.9% |
| 2015-12 | 6% | -25.0% |
| 2016 | 7% | +16.7% |
| 2016-11 | 6% | -14.3% |
| 2017-12 | 6% | 0% |
| 2018-05 | 8% | +33.3% |
| 2020 (current) | 8% | 0% |
| 2021-03 | 7% | -12.5% |
| 2021-04 | 7% | 0% |
Segmentation
Industrymarketing
Cite this stat
Plain Text
Outlook: 8% email client market share. Source: emailclientmarketshare.com (2020). Via Lighthouse Intelligence -- https://lighthousedata.io/data/outlook_market_share_april_may_2020
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<blockquote cite="https://lighthousedata.io/data/outlook_market_share_april_may_2020" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>8%</strong> -- email client market share for Outlook<br><small>Source: emailclientmarketshare.com (2020) · <a href="https://lighthousedata.io/data/outlook_market_share_april_may_2020" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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