Preview my store

Fast, measured, and yours to leave.

What SYNT adds to your store, how we count results, what we collect, and how to take your data with you.

Updated Oct 25, 2026

Speed

The opt-in script entry is 1,816 bytes gzipped (Shopify variant 1,833 bytes) and loads after your page. In Lighthouse tests on two live stores (Sep 1, 2026) it added no measurable blocking time and no layout shift. The service worker file also downloads for visitors who never subscribe; that is on our list to change.

Lucky Visit and push load from that same script. There is nothing that blocks your page from showing.

How we measure results

An order counts toward SYNT when the shopper clicked a SYNT notification before buying. We count the full order value. This is called last-click attribution. It shows which notifications lead to orders; it does not prove those orders wouldn't have happened anyway, so we never call it incremental revenue.

Our case-study figures come from SYNT's production logs and were checked between two separate tracking systems, which matched to the cent. Where a figure has a known limit, the case study says so: on Shopify, for example, many checkouts arrive without an identified shopper, so attributed revenue there is a floor.

We only publish numbers we can stand behind. If you see one on this site, it has a source.

Your data

  • Lucky Visit emails go to your own Shopify customer list or your Miva newsletter, not just to SYNT.
  • We don't sell personal information, use your shoppers' data for our own advertising, or build profiles across stores.
  • Shoppers can turn off push at any time in their browser.
  • Full details: privacy policy.
  • SYNT asks for push permission only after a shopper chooses to subscribe.
  • You choose every reward on Lucky Visit, and write the disclaimer line shown with it.
  • On iPhone, where web push needs the site on the Home Screen, Lucky Visit offers email instead.

No lock-in

Plans are monthly. Cancel in your Shopify admin, by uninstalling, or by emailing contact@synt.com. Ask us to archive or delete your store's data and we will, within 90 days.

AI in SYNT

Cruise Control uses Anthropic's Claude to write notification variants from your brand guidelines and product names. It never receives your shoppers' personal data. The store preview on this site uses Claude the same way, with your public storefront only.