B
Evidence Grade B
Safe to Cite
Current
90%
90% -- email client market share for Apple Mail (including Mail Privacy Protection) and Gmail (2026-05)
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
90%
Unit
Percentage
Data Vintage
2026-05
Entity
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
90
Citation Chain
90
Independence
30
Methodology
45
Freshness
95
Source
Litmus
Primary
Tier A
https://www.litmus.com/email-client-market-share?content=report&utm_campaign=blogsidebar&utm_source=… ↗
Source Article
Email Client Market Share: Trends & Statistics 2026
What exactly is email client market share and why is it important?
There are countless applications and platforms your subscribers are using to view and engage with your emails. It wouldn’t be out of the realm of possibility to say there are hundreds of applications.
Litmus has reported on email cli…
Original Research
Litmus
· Original study ↗
Methodology
Calculated from over 1 billion opens in Litmus Email Analytics
Segmentation
Industrymarketing
Cite this stat
Plain Text
Apple Mail (including Mail Privacy Protection) and Gmail: 90% email client market share. Source: Litmus (2026-05). Via Lighthouse Intelligence -- https://lighthousedata.io/data/email-client-market-share-may-2026-apple-gmail
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<blockquote cite="https://lighthousedata.io/data/email-client-market-share-may-2026-apple-gmail" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>90%</strong> -- email client market share for Apple Mail (including Mail Privacy Protection) and Gmail<br><small>Source: Litmus (2026-05) · <a href="https://lighthousedata.io/data/email-client-market-share-may-2026-apple-gmail" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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