PurpleFire review
Ecommerce CRO partner with a very large result library and strong revenue-lift claims, but limited independent methodological detail.
No published price we can link to. We do not estimate one — ask on the call, and see the pricing-transparency line in the scores below.
Verdict
PurpleFire is a strong ecommerce CRO candidate on case volume and commercial orientation. It publishes more than 200 success stories with extra revenue, ROI, conversion-rate, and revenue-lift figures. Because the numbers are agency-controlled and can include selective winners, buyers should audit experiment logs, failed tests, sample sizes, statistical rules, and analytics access before accepting the headline ROI.
What we verified
Each claim below was checked against a named source, last on 2026-07-21. Follow any of them and check for yourself — that is the point of publishing them.
- PurpleFire publishes more than 200 CRO success stories with extra-revenue and ROI fields across ecommerce brands. purplefire.io ↗
- A featured case reports a 24.8% conversion-rate lift and 280% revenue lift alongside a 3.0x ROI claim. purplefire.io ↗
What other platforms say
Very strong vendor-published revenue evidence and case volume; independent validation and statistical detail are limited.
These are other platforms' numbers, not ours. We report them because they are part of the picture, and we do not average them into our score — our score comes from the published rubric above.
Red flags
- Large headline results are vendor-published
- Selection bias may favor winning experiments
- No public pricing or statistical protocol
How it scored
Experimentation rigor (valid A/B testing)
The agency centers its CRO offer on A/B testing and publishes a large result library.
Conversion research & UX
Its program includes audits, user and funnel analysis, design, and optimization.
Landing page / site design & dev
Landing pages, ecommerce design, implementation, and ongoing optimization are visible.
Analytics & attribution
ROI and extra-revenue reporting are prominent, while calculation and attribution methods require audit.
Measurement tied to revenue lift
Cases explicitly report extra revenue, ROI, conversion lift, and sales growth.
Platform depth (Shopify/Webflow/Next)
Ecommerce implementation depth is clear, while a platform-by-platform capability matrix is not public.
Vertical & stage fit
Purpose-built for ecommerce brands with enough traffic and revenue to support experimentation.
Contract & pricing transparency
No reliable public fee, minimum term, or experiment-ownership language was found.
What we could not verify
- Traffic and sample-size minimums
- Statistical significance, stopping rules, and failed-test rate
- Pricing, code ownership, and analytics access
Sources
This agency has not published a paid trial. What a paid trial is.
Others we evaluated in CRO / Web Conversion
Same rubric, same evaluator, same date range — so these are directly comparable to the verdict above.
See all 26 CRO / Web Conversion agencies we evaluated →