What it is
A cold email platform. Unlimited sending accounts, inbox warmup, deliverability tooling, a lead database, and a set of AI agents that draft sequences and handle replies. It is built for volume outbound, and it is candid about that rather than dressing it up.
Who buys it
Teams sending outbound at scale who care most about landing in the inbox. Deliverability is the whole pitch: warmup, domain rotation and inbox placement are the features people actually pay for, with the AI layered on top.
How it sits against the others here
This category now has four tools doing overlapping jobs, so the honest framing is by bottleneck rather than by brand. Seamless is about finding and verifying who to contact. Amplemarket is about targeting and signals. AiSDR is about handing the SDR job over. Instantly is about getting high volumes of mail delivered. Which of those is your actual constraint decides the shortlist, and it is usually obvious once you say it out loud.
Pricing, checked 18 August 2026
Two separate ladders, which is the thing that confuses people:
- Sending plans: Growth from 47 dollars a month, Hypergrowth 97 dollars, Light Speed 358 dollars, with discounts on annual billing.
- Lead data plans: priced separately, from 94 dollars a month for 5,000 emails and 1,000 uploaded contacts, up through 194 and 555 dollar tiers.
Budget for both if you need sending and data, because the headline 47 dollars is the sending side only.
What we will test
The nine-task protocol is published on this page. For this tool the decisive measures are deliverability and honesty about risk: we run a real domain, measure inbox placement rather than send volume, and record whether the platform warns you about domain reputation or simply lets you send until something breaks. A tool that encourages volume without flagging the risk is selling you a problem you will meet later.
Our commercial relationship
We earn a commission if you subscribe through our link. Rate not yet confirmed at source, so it is not stated here. It will be, with the date we read it.