FlowRelay

FlowRelay, officially listed on the Shopify App Store as FlowRelay: Send Email via Flow, is a Shopify app in the Email marketing category. FlowRelay adds the Send transactional email action to Shopify Flow. Email content is customizable using Liquid variables — pull in order details, customer names, or any attribute from your workflow. Emails go out through your own provider (such as SendGrid, Resend, Mailgun, or Postmark) and domain via API key or SMTP. Delivery status is recorded for each email: delivered, bounced, or reported as spam. Use it for order confirmations, account notifications, internal alerts, or any custom email.

FlowRelay offers a free plan and 3 paid plans starting at $9/month and going up to $49.99/month. The free plan includes 50 emails/month, All providers, and 3-day sent email log. The paid plans unlock advanced features beyond what's available on the free tier.

Yes — FlowRelay offers a free plan alongside paid options. The free plan includes 50 emails/month, All providers, and 3-day sent email log. Paid plans start at $9/month for advanced features.

FlowRelay launched on May 18, 2026.

FlowRelay does not currently carry Shopify's Built for Shopify badge. The badge is awarded to apps that meet Shopify's published standards for performance, ease of use, and merchant value — many high-quality apps operate without it.

Merchants commonly compare FlowRelay with Shopify Flow, Pop Convert, SendWILL Popup Email Marketing, and Privy. Each alternative covers a similar use case but differs on pricing model, integration depth, and the specific themes merchants praise in reviews — see the alternatives section above for a side-by-side.