B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
70%
70% -- email open share for Apple Mail and Gmail (2026)
Apple Mail and Gmail combined account for approximately 70% of email opens.
- Approximation stated as roughly 70%
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
70%
Unit
Percentage
Data Vintage
2026
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
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
35
Freshness
95
Source
EmailTemple
Primary
Tier B
https://emailtemple.com/blog/html-email-prompt ↗
Source Article
HTML Email Prompt: 8 Rules for AI Email That Renders — Field Notes | EmailTemple
Most people who ask an AI for an HTML email prompt get back something that looks fine in the ChatGPT preview and then falls apart the moment it lands in an inbox. That gap is structural: a naked prompt tests what the model already knows about email HTML, while a real system wraps that prompt in rule…
Original Research
EmailTemple
· Original study ↗
Methodology
Vendor estimate of combined open share across trackable email clients; exact methodology not stated
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Apple Mail and Gmail: 70% email open share. Source: EmailTemple (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/apple-mail-gmail-open-share-2026
HTML Embed
<blockquote cite="https://lighthousedata.io/data/apple-mail-gmail-open-share-2026" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>70%</strong> -- email open share for Apple Mail and Gmail<br><small>Source: EmailTemple (2026) · <a href="https://lighthousedata.io/data/apple-mail-gmail-open-share-2026" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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