Are Castanet and Dux-Soup still available to buy?

Yes. Castanet offers a signup for its LinkedIn outreach service. Dux-Soup sells STACKED local and STACKED cloud subscriptions; its former Pro, Turbo and Cloud browser extensions have been deprecated.

Which costs less for one user?

Castanet lists a $99-per-month Basic plan, while Dux-Soup lists STACKED local at $55 per month per seat or STACKED cloud at $99 per month per seat. Castanet’s current trial signup quotes $199 per month after the trial, so confirm the available plan at checkout.

Do I need to leave my computer on?

Castanet runs in the cloud without an installation. Dux-Soup’s STACKED local requires a computer to stay on for scheduled automation; STACKED cloud runs automation independently of the computer.

Does either product support LinkedIn Recruiter?

Dux-Soup lists LinkedIn Recruiter compatibility for STACKED. Castanet publishes LinkedIn and Sales Navigator targeting but does not state Recruiter compatibility.

Which offers white labeling for agencies?

Castanet advertises a white-labeled portal with client logins and agency administrative control. Dux-Soup advertises multi-account agency management but does not publish a comparable white-label portal offering.

What integrations do they offer?

Castanet publishes Zapier and Google Sheets connections. Dux-Soup lists integrations including Salesforce, HubSpot, Pipedrive, Zapier and Make.

Can I try Castanet or Dux-Soup before paying?

Castanet offers a seven-day trial and requests payment details at signup. Dux-Soup offers a 14-day STACKED local trial without requiring a credit card.

Castanet vs Dux-Soup

Choose Castanet if you want cloud-based LinkedIn outreach without installing software, especially for a white-label agency offering; choose Dux-Soup if you want a lower-priced entry point, a Mac or Windows desktop app, and a choice between local and cloud automation. Both offer LinkedIn campaigns, but their deployment options and published pricing differ substantially.

Last updated November 1, 2026.

At a glance

Castanet compared with Dux-Soup, one row per dimension
Dimension	Castanet	Dux-Soup
Deployment	Cloud-based; nothing to install	STACKED local or STACKED cloud
Monthly price	Basic $99; Sales Pro $199; Team $399	Local $55 per seat; cloud $99 per seat
Annual billing	Not published	Local $41.25; cloud $74.17 per seat monthly, billed annually
Supported environments	LinkedIn and Sales Navigator	LinkedIn, Sales Navigator and Recruiter
Desktop operating systems	No installation required	Mac and Windows
Agency features	White-labeled client portal	Multi-seat dashboard and team campaigns
Integrations	Zapier and Google Sheets	Salesforce, HubSpot, Pipedrive, Zapier, Make and others
Campaign limits	Basic: 2 campaigns; Sales Pro and Team: unlimited	Unlimited concurrent campaigns
Profiles or seats	Basic and Sales Pro: 1 profile; Team: 3 profiles	Per-seat pricing; multi-seat options
Prospect targeting	LinkedIn searches, Sales Navigator and groups	LinkedIn searches, uploaded lists and individual profiles
Free trial	7 days; payment details requested	14-day STACKED local trial; no credit card required
Support	Email or online support; phone support on Sales Pro and Team	Free 15-minute technical support calls

Scroll the table sideways to compare each row.

Which should you choose?

Choose Castanet if

Teams that want cloud-based outreach with nothing to install
Agencies seeking a white-labeled client portal
Sales teams targeting LinkedIn groups

See Castanet — 15% CASHBACK

Choose Dux-Soup if

Buyers who want a lower-priced entry point
Teams choosing between local and cloud automation
Recruiters using LinkedIn Recruiter
Teams seeking named CRM integrations

See Dux-Soup

The verdict

The deciding factor is how you want outreach to run. Castanet is the better fit for buyers who want cloud-only operation or a branded client portal. Dux-Soup, now sold as STACKED, is the better fit for buyers who want local or cloud deployment, published per-seat pricing, and support for LinkedIn Recruiter.