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Apollo.io vs Sumo: 2026 Comparison

Apollo.io Sumo
Overview Apollo.io is an all-in-one sales intelligence and engagement platform with a database of over 275 million contacts. It combines prospecting, enrichment, and outreach automation in a single workflow. Free email capture and list building toolkit with pop-ups, welcome mats, and scroll boxes for growing email lists.
Pricing Freemium ($0-99/mo) Freemium ($0-49/mo)
Key Features
  • Contact database
  • email sequencing
  • dialer
  • LinkedIn integration
  • buying intent signals
  • data enrichment
  • CRM sync
  • lead scoring
  • Pop-ups
  • Welcome mat
  • Smart bar
  • Scroll box
  • Share buttons
  • Heat maps
  • List builder
Pros
  • Massive contact database
  • Generous free tier
  • All-in-one platform
  • Good data accuracy
  • Free tier
  • Easy setup
  • Multiple capture types
  • WordPress plugin
Cons
  • Data can be outdated for smaller companies
  • UI can feel cluttered
  • Email deliverability issues at scale
  • Branding on free
  • Limited features
  • Can slow site