# Sticky mobile CTA on a subscription homepage: +20.4% conversion

- Outcome: Won
- Page type: Homepage (Ecommerce)
- Elements: Sticky add-to-cart bars, Add-to-cart & CTA buttons
- Date shared: 2026-04
- Test run by: [Convertibles](https://liftarchive.com/practitioners/convertibles/)
- Commentary by: LiftArchive (our analysis, not theirs)
- Original source: https://convertibles.dev/blogs/case-studies/homepage-sticky-cta-case-study
- Page: https://liftarchive.com/test/whisky-subscription-homepage-sticky-cta/

Adding a sticky bottom CTA bar to a long mobile homepage lifted conversion rate from 1.135% to 1.366%, a 20.4% gain. Convertibles ran this A/B test in Intelligems for an Australian whisky subscription brand. Order value stayed flat, so the extra revenue came from more people joining.

## Result

**+20.4% conversion**

- Conversion rate: 1.135% to 1.366% (+20.4%), with a 95.1% probability to beat control.
- Revenue per visitor: A$1.76 to A$2.10 (+19.6%), but only an 87.3% probability to beat control, so treat it as less certain.
- Average order value: flat (A$155.01 vs A$153.96). The sticky bar brought more orders, not bigger ones.
- Profit per visitor: A$0.63 to A$0.74 (+16.4%). The agency estimated about A$7,632 more revenue a month.

## Control

A long mobile homepage with Join buttons only inside the page content. Once visitors scrolled past one, they had to scroll back or find the next.

## Variant

A sticky bar at the bottom of the mobile screen with a Join now button and two short notes: free shipping, and skip or cancel anytime.

## Why it likely won (our reading)

- A subscription needs explaining, so many visitors decide well below the first button.
- Keeping the button in reach removes the need to scroll back up once they're ready.
- Free shipping and skip-or-cancel notes address cost and lock-in worries right at the click.
- The offer itself didn't change, which fits the flat order value.

## Caveats

The test ran from 2 April to 7 May 2026 with 25,935 visitors and 327 orders. The revenue gain is less certain than the conversion gain, and revenue figures are in Australian dollars.

## How to run this test

- Hypothesis: If we add a sticky CTA bar with short reassurance notes to a long mobile homepage, then more visitors will subscribe because the button is in reach when they decide.
- Primary metric: Conversion rate
- Guardrail: Revenue per visitor
- Guardrail: Average order value
- Guardrail: Subscription cancellation rate
- Who should test it: Subscription and premium brands with long mobile pages that explain the offer. Short pages, or pages with a visible button at every decision point, will likely see little gain.

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Credit: Convertibles ran this test and owns the result. Summary and commentary by LiftArchive (https://liftarchive.com/test/whisky-subscription-homepage-sticky-cta/).
Usage: Free to use, quote and build on, with credit and a link: name the practitioner or organization that ran the test and link to its LiftArchive page. The results belong to the practitioners who ran and shared them; the summaries and commentary are LiftArchive's.