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Apollo.io vs Upstash: 2026 Comparison

Apollo.io Upstash
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. A serverless data platform offering Redis and Kafka with per-request pricing and global replication for edge computing.
Pricing Freemium ($0-99/mo) Freemium (Free-pay-per-request)
Key Features
  • Contact database
  • email sequencing
  • dialer
  • LinkedIn integration
  • buying intent signals
  • data enrichment
  • CRM sync
  • lead scoring
  • Serverless Redis
  • Serverless Kafka
  • QStash messaging
  • Per-request pricing
  • Global replication
  • REST API
  • Edge compatible
  • Durable storage
Pros
  • Massive contact database
  • Generous free tier
  • All-in-one platform
  • Good data accuracy
  • True serverless pricing
  • Edge-compatible
  • Great for serverless apps
  • Generous free tier
Cons
  • Data can be outdated for smaller companies
  • UI can feel cluttered
  • Email deliverability issues at scale
  • Per-request costs add up
  • Feature subset of full Redis
  • Newer platform
  • Limited Kafka features