SubjectIQ turns your store's own send history into subject lines that convert—then keeps testing until every email beats the last.
We pull your Shopify and email history to see what already converts—no cold-start guessing, no generic templates.
Every send spins up subject line variants and A/B tests them automatically. Winners get promoted, losers get killed.
Each campaign trains the next. Opens and revenue climb send over send—no analyst required.
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