Closely vs Warmup Inbox

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Two Outbound tools side by side: what each does, what it costs and who it suits.

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The verdict Side by side Plans and pricing Who each is for Other options

The verdict

On the data we hold, Warmup Inbox comes out ahead. Here is why, point by point.

What the data says

Warmup Inbox starts lower, at $15/mo against $39/mo.
In our Outbound ranking, Warmup Inbox places 6 and Closely 33 of 33.

Side by side

Closely and Warmup Inbox compared
At a glance	CLClosely	Warmup Inbox
Starts at	$39/mo	$15/mo
Free plan	No	No
API	No	Yes
MCP server	No	No
Links	Visit	Visit

Plans and pricing

Closely

StarterSolo sellers managing one profile$65/mo
GrowthSmall teams scaling outreach$159/mo
EssentialLarger teams needing more accounts$259/mo

Warmup Inbox

BasicPer inbox per month; 75 warm-up messages a day. Volume discounts as you add inboxes.$15/mo
ProPer inbox per month; 250 warm-up messages a day plus custom templates and scheduling.$49/mo
MaxPer inbox per month; 1,000 warm-up messages a day plus API access and premium support.$79/mo

Prices as the vendors list them. They change often; the final price is on their sites.

Who each is for

Choose Closely if…

We haven't written up who Closely suits yet.

Visit Read the review

Choose Warmup Inbox if…

Sales, SDR and agency teams about to send cold email from new mailboxes, who need those mailboxes warmed up and monitored so campaigns reach the primary inbox.

Visit Read the review

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