LinkedIn vs Warmup Inbox

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

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

The verdict

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

What the data says

Only LinkedIn has a free plan to start on.
Warmup Inbox starts lower, at $15/mo against $119.99/mo.
In our Outbound ranking, LinkedIn places 23 and Warmup Inbox 6 of 33.

Side by side

LinkedIn and Warmup Inbox compared
At a glance	LinkedIn	Warmup Inbox
Starts at	$119.99/mo	$15/mo
Free plan	Yes	No
API	Yes	Yes
MCP server	Not known yet	No
Links	Visit	Visit

Plans and pricing

Standard$119.99/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 LinkedIn if…

B2B founders and sellers who research, connect with and follow up with decision-makers on LinkedIn, and who treat it as a relationship layer that feeds a proper CRM.

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

Other options worth a look

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Run cold email outreach at scale with unlimited mailboxes, warm-up automation and lead verification.
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Dealfront
Identifies website visitors by company and provides EU-based B2B contact data with buyer intent signals.
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