Side by side · Cold email software
Instantly vs Smartlead
Who should pick which, from each company’s own pricing pages and terms.
We check it out so you don’t have to.
How we researched this page: we read each company’s own pricing pages and terms, independent tests, and customer reviews. We did not use these products ourselves. Prices change often, so each one shows the date we checked it.
In short: Instantly — high-volume sending, many inboxes. Smartlead — agencies, unlimited inboxes. The details, prices and honest downsides are below.
| Item | Instantly | Smartlead |
|---|---|---|
| Best for | High-volume sending, many inboxes | Agencies, unlimited inboxes |
| Starting price | $47/mo (Growth), checked October 25, 2026 | $39/mo (Base), checked October 25, 2026 |
| Trial / refund | Free trial | Free trial |
Who Instantly fits
Agencies and founders sending cold email at scale across many inboxes, with built-in warm-up.
Watch out for: Add-ons raise the real cost. Easy to over-send and hurt deliverability if you don’t follow good practice.
Who Smartlead fits
Lead-gen agencies that need unlimited inboxes and client sub-accounts.
Watch out for: The interface is functional rather than friendly.
Quick verdict
Instantly suits founders and agencies sending at scale across many inboxes with built-in warm-up; add-ons raise the real cost. Smartlead suits lead-gen agencies that need unlimited inboxes and client sub-accounts, and starts lower ($39 against $47 a month). Either way, follow the CAN-SPAM rules on our cold email page.
Visit Instantly’s official site
Visit Smartlead’s official site
More on each: our full Instantly review · our full Smartlead review
See every option in Best Cold Email Software, including companies not covered here.
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