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Estuary

Real-time CDC and batch pipelines priced per GB and connector

Overview

Estuary (product name Estuary Flow) is a data movement platform built around real-time change data capture, which also supports batch sources and in-flight transformations. Its pricing is among the most transparent in the category. The Developer tier is free for up to 10 GB per month and two connector instances, with no credit card[19]. The Cloud tier is pay-as-you-go at US$0.50 per GB plus US$100 per month per connector instance for the first six and US$50 per instance thereafter, prorated by the hour; data is counted each time it is captured from a source and each time it is delivered to a destination, including transformation output[19].

Enterprise contracts add annual discounts, private and bring-your-own-cloud deployment, single sign-on, a SOC 2 report and a HIPAA business associate agreement[19]. Exceeding Developer limits starts a 30-day free trial of the Cloud tier automatically[19]. Estuary is a younger and smaller vendor than Fivetran or Informatica, so its connector catalogue and partner ecosystem are narrower, and the double counting of captured and delivered data should be included when comparing per-GB prices with row-based competitors.

What Estuary does

  • Real-time change data capture
  • Batch and streaming in one pipeline
  • Free Developer tier (10 GB, 2 connectors)
  • BYOC and private deployment on Enterprise
  • SOC 2 report and HIPAA BAA on Enterprise
  • Log-based CDC
  • Real-time streaming delivery
  • Batch integration

Estuary pricing

Developer: free up to 10 GB/month and 2 connector instances. Cloud: US$0.50/GB plus US$100/month per connector instance (US$50 after the sixth). Enterprise: custom annual contract. 30-day trial when exceeding Developer limits.

Estuary strengths and limitations

Strengths

  • Transparent per-GB pricing
  • Low-latency CDC
  • Free tier for small projects
  • BYOC option
  • Real-time by default
  • Published per-GB pricing

Limitations

  • Data counted on capture and on delivery
  • Smaller connector catalogue
  • Younger vendor
  • Connector fee adds up with many sources
  • Per-connector fees add up
  • Smaller catalogue than leaders

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