
Site optimization - OtherBy Swicelso OÜLaunched September 28, 2026Updated October 1, 2026
Holdout ‐ A/B Testing & CRO launched on September 28, 2026. Shoplist is watching for its first storefront installs and tracking pricing in the meantime.
Get alerted on first storefront installs, review spikes, pricing changes, and listing edits.

Test storefront changes safely and ship a winner only when the data supports it.
Holdout runs A/B tests on your storefront without touching theme files. Describe the change you want, preview both versions, choose the audience and the goal, then launch. It measures conversion rate, revenue per visitor, add-to-cart and order value, and applies the winner as a runtime rule you can roll back at any time. Every test is held to a minimum duration and a calibrated threshold. When the data falls short, Holdout says so instead of naming a winner.
Every number on this page comes from public storefront scans and the public Shopify App Store listing. If Shoplist shows Holdout ‐ A/B Testing & CRO on a store, it is there.
Read the data methodology