Segment
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About Segment
Segment is the world's leading Customer Data Platform (CDP), enabling companies to collect user events from any source and send them to hundreds of analytics, marketing, and data tools simultaneously — eliminating the need to implement separate tracking for each tool. Founded in 2011 in San Francisco and acquired by Twilio in 2020 for $3.2 billion, Segment serves over 25,000 companies including IBM, Levi's, and DigitalOcean. The core concept is a single SDK that collects events once and routes them wherever needed — to Mixpanel for product analytics, to Salesforce for CRM, to Braze for email campaigns, and to Snowflake for data warehousing — all from one integration. This 'collect once, send anywhere' model dramatically reduces engineering overhead and ensures consistent data across all tools. Segment Unify creates unified customer profiles by resolving identities across devices and sessions. Segment Engage activates audience segments across channels. The free Developer plan allows 1,000 monthly tracked users (MTU). Team is $120/month and Business pricing is custom, scaling with MTU volume.
Frequently Asked Questions
What does Segment do?
Segment collects user events (page views, clicks, purchases, signups) from your website and apps via a single SDK, then routes that data to any of 450+ integrated tools — analytics platforms, CRMs, email tools, ad networks, and data warehouses — simultaneously. Instead of implementing separate tracking for each tool, you implement Segment once.
Is Segment free?
Segment's Developer plan is free for up to 1,000 monthly tracked users (MTU) with 2 data sources and access to all integrations. Team is $120/month for up to 10,000 MTU with unlimited sources. Business pricing is custom and scales with volume — enterprise contracts typically run $30,000–$150,000+/year for large organizations.
Do I need Segment if I use Mixpanel?
Not necessarily. Segment is most valuable when you're sending data to 3+ tools — its 'collect once, send everywhere' model saves significant engineering time. If you only use Mixpanel (or one or two other tools), implementing Segment's SDK natively in each is often more straightforward. Segment becomes essential at scale when you need consistent data across many systems.
Top Alternatives to Segment
Rudderstack
Open-source CDP alternative, lower cost at scale
Amplitude
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Mixpanel
Direct product analytics without the data routing layer
mParticle
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PostHog
Open-source analytics + CDP features in one
Google Tag Manager
Free tag management for website tracking without full CDP
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