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Basecamp vs Slack: cost at your team size

Annual cost of the cheapest published plan that covers each team size. Basecamp is billed flat rate, Slack is billed per seat.

Team	Basecamp	Slack	Basecamp vs Slack
5 seats	$348Freelancer	$0Free	–
10 seats	$948Pro	$0Free	–
25 seats	$2,388Pro Unlimited	$0Free	–
50 seats	$2,388Pro Unlimited	$0Free	–
100 seats	$2,388Pro Unlimited	$0Free	–

Team

Basecamp

Slack

Basecamp vs Slack

5 seats

$348Freelancer

$0Free

–

10 seats

$948Pro

$0Free

–

25 seats

$2,388Pro Unlimited

$0Free

–

50 seats

$2,388Pro Unlimited

$0Free

–

100 seats

$2,388Pro Unlimited

$0Free

–

Prices read from the vendor pages on 24 Oct 2026 and 24 Oct 2026. A positive delta means Basecamp costs more.