Does a sticky button back to the form lift mobile conversion?

Mobile visitors who scrolled past the homepage form had no quick way back to it. We tested a sticky button that returned them to the form. Over 15 days, conversion rose 2.8%, a result that did not reach our confidence bar.

Not significant Mobile 15 days Not called

SURFACE

Homepage

DEVICE

Mobile

VERTICAL

Ecommerce (B2C)

PRIMARY METRIC

Conversion rate

VARIATIONS

1

The hypothesis

By giving mobile visitors a sticky button back to the form while they scroll, we will make it easier to start, resulting in more form submits and orders.

Some visitors scroll down the homepage to learn more before they start. Once they had scrolled past the form, they had to scroll back up to begin, so a button that stays on screen offered a shortcut.

What we changed

A sticky button that returns mobile visitors to the form

We added a button that stayed on screen as visitors scrolled the mobile homepage. Tapping it brought them back to the form at the top of the page.

VAR A: STICKY CTA

Sticky button added while scrolling
Button returns visitors to the form

The result

Conversion rose 2.8%, short of our confidence bar

CONVERSION RATE

+2.8%

Over 15 days, the version with the sticky button converted 2.8% better than the original, but the gap did not reach our confidence bar. The results stayed noisy from week to week, so we paused the test.

What we would do next

Try a lighter way back to the form

The button may have gotten in the way of visitors reading the content lower on the page, which is why they scrolled down in the first place. A lighter prompt that does not compete with that content is the next version worth testing.