Retail / DIYSourced

Case Study: toom drove a 95% uplift in loyalty card signups after removing traffic caps

toom Case StudySourced & dated by Case Study Desk

Key facts · TL;DR

Company

toom

Industry

Retail / DIY

Challenge

Escape a prior tool's traffic caps that limited tests to 5% of visitors and slowed learning.

Headline result

toom lifted loyalty card signups 95% and cut analysis time from 4 hours to 2 minutes with GrowthBook

Key results

95%

uplift in loyalty card signups

4 hrs → 2 min

analysis time

55%

of experiments were winners

11% losers, 33% neutral

100%

of visitors testable

up from a 5% cap on prior tool

The challenge

toom, a major German DIY hardware retailer, was capped by its previous tool's pricing model to running experiments on only 5% of traffic, which the team said meant it could not challenge assumptions or understand users at the level it wanted.

The solution

After moving to GrowthBook, toom unlocked testing on 100% of website visitors and automated its analysis workflow across the experimentation lifecycle.

The results, in context

toom reported a 95% uplift in loyalty card signups and reduced analysis time from 4 hours to 2 minutes. Across its program, outcomes ran at 55% winners, 11% losers, and 33% neutral, with experiments now able to reach all site visitors rather than a 5% slice.

Products used

GrowthBook ExperimentationGrowthBook Feature FlagsGrowthBook Product Analytics