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Email & Retention

AI Subject Line Optimizer

1 credit As low as $0.07 per run

A fixed-cost AI workflow with a predictable credit price so teams can run it without hidden usage surprises.

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What does this cost?

This workflow uses 1 credit per run. The bigger the credit pack you buy, the less each run costs.

Credit packPack priceCost per run
100 Credits $17.00 $0.17
500 Credits $55.00 $0.11
2,500 Credits $225.00 $0.09
10,000 Credits $800.00 $0.08
50,000 Credits $3500.00 $0.07 best value

Promo credit packs do not expire for one year from purchase, and early-release buyers keep the pack price they bought even if public pack pricing rises later. AI credits stay separate from Free, Pro Monthly, and Pro Lifetime plans.

Best use for AI Subject Line Optimizer

AI Subject Line Optimizer is registered as the email ai subject workflow in the Email & Retention group. Its job is specific: A fixed-cost AI workflow with a predictable credit price so teams can run it without hidden usage surprises.

Use it when the owner has a real email & retention task connected to Email Marketing. The related module context is Email Marketing: Full email marketing suite — templates, subscribers, campaigns, automations, drip sequences, birthday rewards, and analytics, so the output should land back in that operational path instead of becoming loose AI text.

Inputs to prepare for AI Subject Line Optimizer

  • The audience segment, recent customer action, or campaign goal before running AI Subject Line Optimizer.
  • The offer, deadline, product, service, or update that the email should make clear without sounding pushy.
  • The template or campaign area in Email Marketing where the approved copy will be used.

Review rules before spending 1 credit(s)

  • Read AI Subject Line Optimizer out loud before sending; customer-facing AI copy should sound like the business, not a template.
  • Verify names, dates, prices, appointment windows, and promised actions before the message leaves the dashboard.
  • Keep the call to action simple enough that the customer knows exactly what to do next.