Email Marketing (standalone) · Vendor file
HEY
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Verified representative
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Gmail, Outlook, and Apple got complacent and took their eye off the ball. Then along came HEY.
Active · verified September 2026
Categories HEY serves
The B4 Index places HEY in one category. Each category page lays out the build-versus-buy considerations for that decision.
The B4 Index scores every software category on two axes, strategic differentiation and AI feasibility, to
classify it Build, Buy, Bridge, or Beware. Vendor facts here are independent of that call. See the full
methodology.