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Every signup kept. No cap, on every plan.

Unlimited contacts on every plan, including Free. No per-contact fee, and no extra bill as the list grows.

  • Free is 3 popups and 3 widgets
  • Billed by Shopify
  • No theme code

Contacts

Sample data
Signed up fromWhenOrder
Welcome codeTodayOrdered
Free shipping barYesterdayOrdered
Back in stockMonday—
Exit offerSunday—
Unlimited
contacts, even on Free
$0
per contact, ever
CSV
export any time

The list, Shopify, consent, and export

Unlimited contacts on every plan, including Free. No per-contact fee, and no extra bill as the list grows.

Contact list

Every signup with the popup or widget it came from.

Shopify customers

New signups added with the tag “Castor signup”.

Consent kept

Marked as a subscriber only when the shopper ticked the box.

Klaviyo and Shopify Email

Apps that sync from Shopify pick those customers up on their next sync.

CSV export

Download every contact whenever you want.

Orders next to signups

See which signups ordered

Each contact shows where it signed up. After you approve orders at install, Castor can mark the ones who bought.

  • Signed up from: the exact popup or widget
  • Ordered: matched from the install list
  • Export as a CSV

Contacts

Sample data
Signed up fromWhenOrder
Welcome codeTodayOrdered
Free shipping barYesterdayOrdered
Back in stockMonday—
Exit offerSunday—

Privacy built in

Privacy requests and consent, handled

Castor honors Shopify's privacy requests for customer data and deletion, and keeps consent with every signup.

  • GDPR and CCPA requests handled
  • Data deleted when the shop is removed
  • Every service provider listed in the privacy policy

Questions about Unlimited contacts

How many signups can I collect?

As many as you want. Contacts are unlimited on every plan, including Free. Castor never charges per contact.

Can signups go into Shopify?

Yes, if you turn it on. Each new signup is added to your Shopify customers with the tag “Castor signup”. It is marked as an email subscriber only when the shopper ticked your form's consent box.

Does it work with Klaviyo or Shopify Email?

Yes. Once signups go into Shopify customers, Shopify Email can use them. Klaviyo and other apps pick them up on their next Shopify sync.

More answers in the FAQ.

Install free. Three popups, three widgets.

Unlimited views and contacts on every plan. A/B tests start on Startup. Billed by Shopify when you upgrade.