Run the experiment the same way from the first email to the last

Sequences, AI-written messages and timezone-aware sending that don't drift while the experiment runs, so the result measures your offer and nothing else.

  • Signal Check on every campaign
  • No credit card required
Live campaign with its Signal Check and per-step pipeline
Sequence builder

One sequence, fixed for the whole test

Set the steps and the delays between them once. Every lead in the experiment gets the same sequence, so the only thing that varies is how people respond.

  • Reusable sequences you can copy for the next experiment
  • Custom delays between steps
  • Follow-ups sent as replies in the same thread
Multi-step sequence builder
Autopilot

Messages written and checked by AI

Autopilot writes each message from the lead's own data, reviews it against the same rules every time, and runs a spam check before it's queued. Check the first few by hand, then let it run.

  • Personalization from each lead's fields
  • A review pass before any message is queued
  • Built-in spam check on every draft
A generated message awaiting review
Sending

Sending that treats every lead alike

Messages go out in business hours in each lead's own timezone, paced across your mailboxes, so no part of the sample gets a 3 a.m. email.

  • Business-hours delivery in the lead's timezone
  • Pacing and warm-up to protect your domains
  • Daily limits per campaign
Campaign timezone field and sending mailboxes

Replies, bounces and a verdict

Sending is half of an experiment. Reading what came back is the other half.

Reply detection

When a lead replies, their remaining follow-ups stop, and the reply is classified as human or automatic.

Bounces & unsubscribes

Bounces and opt-outs are handled automatically, and unsubscribes count toward the harm signal.

A Signal Check on every campaign

Delivery, replies and unsubscribes tested statistically, with a verdict or the number of sends still needed.

Launch your first experiment

New accounts start with 2,000 free connects. No credit card required.