Free BBQ recipe e-book with knife orders: +48.71% revenue per visitor

WinnerOther · 2026-05-21

Offering a free summer BBQ and grilling recipe e-book with knife purchases lifted revenue per visitor by 48.71%. Oliver Kenyon ran this test for a store selling cooking knives. The e-book was sent by email after purchase, so it cost almost nothing to deliver.

+48.71% revenue per visitor
  • Revenue per visitor: +48.71%. This is the only number shared, and it is very large for a single change.
  • Conversion rate, order value and profit were not shared, so we cannot say where the extra revenue came from.

The change

Control (A)
Seasonal sale
header
title
rating
price
60% off
benefits
Variant (B)
Seasonal sale
header
Free E-book: BBQ recipe cookbookNEW
title
rating
price
60% off
benefits

A free recipe e-book offer added on the product gallery.

Simplified mockup drawn by LiftArchive from the shared screenshots.

Control

The product page sold the knife bundle with its discount and product benefits, but no free gift.

Variant

The product gallery showed a "Free E-book" label and a cover image for a summer BBQ and grilling recipe cookbook. Buyers received the e-book by email after ordering.

Why it likely won

Our reading of the result, not the practitioner's claim.

Caveats: Only one metric was shared, with no sample size, test length or confidence range, so treat the 48.71% as a single store's result. The test ran around a seasonal sale, which may not repeat at other times of year.

Who ran it

Oliver Kenyon (@oliverkenyon) shared this test on X. The numbers and screenshots are theirs.

How to run this test on your store

Hypothesis
If we offer a free digital guide that matches how buyers will use the product, then revenue per visitor will rise because the offer adds perceived value without discounting the price.
Primary metric
Revenue per visitor
Guardrails
  • Average order value
  • Profit per visitor
  • Refund rate
Who should test it
Stores whose products lead to a clear use, like cooking, coffee brewing or training, where a guide helps buyers get more from the purchase. It is less likely to work if the guide feels generic or unrelated to the product.

Questions

Do free digital gifts with purchase increase sales?

In this test a free BBQ recipe e-book lifted revenue per visitor by 48.71%. Only that one metric was shared.

What kind of free gift works best?

This one was tied closely to how buyers would use the product, recipes for new knives. A gift that fits the purchase is likely to feel more valuable than a random extra.

How was the free e-book delivered?

It was emailed after purchase, so there was no shipping or packing cost.

Free gifts & gift with purchase tests All other tests