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testcritic

Convert Experiences vs Eppo

Feature checklists rarely decide anything. What decides it is the pricing metric, who has to write the tests, and which limitation you can live with.

Entry price

From $299 per month (Growth, paid annually, 100k tested users; $399 monthly)

Trial only

Quote on request

Quote only

What drives the bill

The metric that actually scales your invoice.

Priced only on tested traffic — unlimited experiments, domains and users at every tier. Growth is $299/month paid annually ($399 monthly) for 100k tested users; Pro starts around $420/month annually.

Quote-based, generally aimed at companies with a data team and a warehouse already in place.

Free tier

15-day trial.

Free tier available for small teams.

Open source

Self-hostable

No-code authoring

Languages

JavaScriptCodeless
JavaScriptTypeScriptPythonJavaGoRuby

Platforms

Web
WebAPIiOSAndroid

Fits teams

StartupScale-up / mid-market
Scale-up / mid-marketEnterprise

Adoption

Emerging

Convert Insights · since 2010

Established

Eppo (Datadog) · since 2020

Strengths

  • Unlimited experiments and seats, so nobody rations testing to save licence cost.
  • Serious privacy posture with EU hosting and no data resale.
  • Transparent, published pricing.
  • Statistically rigorous — sequential testing, CUPED and diagnostics are core, not add-ons.
  • Metrics defined once in the warehouse and reused across every experiment.
  • dbt integration fits existing analytics engineering workflows.

Limitations

  • Client-side only — no server-side experimentation.
  • No feature-flag capability.
  • Smaller vendor with a modest ecosystem.
  • Requires a warehouse and a data team; not usable by a product manager alone.
  • Feature-flagging capability is lighter than dedicated flag platforms.
  • Now part of Datadog, which changes the strategic picture.

Best for

Mid-sized e-commerce teams that want unlimited client-side testing with clean privacy handling.

Data-mature organisations where experiment results must withstand scrutiny.

All of these integrate with: Segment.

Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.