Dux Soup vs Zopto: Which Cold Outreach Tool Is Superior?

I keep getting the same question from sales teams: Dux-Soup, Zopto, or Salesforge for LinkedIn outreach? There is a catch most comparison pages miss. When I checked this month, zopto.com issued a permanent redirect to a different brand called Zeekeo, so the self-serve Zopto people remember is gone.

Dux-Soup is a mature LinkedIn automation tool from the Netherlands, built in 2015 and used by 300,000 people. Salesforge is a multi-channel outreach platform that runs cold email and LinkedIn together and sits on top of the wider Forge Stack.

This is the feature-by-feature breakdown I would want before spending a dollar, including the parts where each tool is genuinely a fit.

LinkedIn Outreach Tools at a Glance: Dux-Soup vs Zopto

Here is the short version before the detail. Prices are the current live rates, checked in July 2026.

Dux-Soup Overview: Browser-Based LinkedIn Automation

Dux-Soup is a LinkedIn automation tool built by Supertec BV in the Netherlands. It launched in 2015 and reports 300,000 users, which makes it one of the older LinkedIn automation tools around.

It automates profile visits, connection requests, messages, and follow-ups. The Pro and Turbo plans run as a Chrome extension, so your browser has to stay open. The Cloud plan runs on Dux-Soup's own servers instead.

Core features

• LinkedIn actions: profile visits, connection invites, direct messages, InMails, profile follows, and endorsements, up to 12 touches in a drip campaign.
• Drip campaigns: multi-step sequences with custom time delays, on the Turbo and Cloud plans.
• AI messages: a built-in OpenAI integration writes a first message from profile data before it sends.
• CRM integrations: HubSpot, Pipedrive, Salesforce, Freshsales, HighLevel, Woodpecker, Slack, and more, from the Turbo plan up.
• Dux-Dash: a dashboard for campaign stats and lead management.
• CSV download: export LinkedIn profile data and email addresses to a spreadsheet.
• Cloud option: Cloud Dux runs campaigns without your browser open.

Pricing

Dux-Soup sells three individual tiers, billed monthly or annually with a 25% annual discount: Pro Dux at $14.99/mo ($11.25/mo annual), Turbo Dux at $55/mo ($41.25/mo annual), and Cloud Dux at $99/mo ($74.17/mo annual). The Cloud Agency plan starts at $371/mo for five seats. A 14-day Turbo trial is available.

Who it's best for

Dux-Soup fits solo operators, recruiters, and small teams that want LinkedIn-only automation and already run a CRM. For a single user on a tight budget, Pro Dux at $14.99/mo is the cheapest entry point in this comparison.

What reviewers say

Dux-Soup holds a 4.7/5 on Trustpilot from a small sample, so plenty of users are happy. The critical reviews cluster around a few themes worth knowing before you commit.

• The interface is often called dated and not intuitive, and Dux-Soup has said a refreshed UI is planned for summer 2026.
• The browser-based plans consume local resources and can freeze; you cannot truly set it and forget it unless you pay for Cloud.
• Messages in a running campaign cannot be edited without restarting it, and CRM syncs like the Pipedrive one above draw complaints.
• The biggest structural limit: Dux-Soup does no email. There is no cold email, no email finder, and no email warm-up anywhere in the product.

Zopto Overview: The Tool That Became Zeekeo

Here is the part almost no comparison page will tell you. Zopto, the self-serve LinkedIn automation SaaS, was shut down in February 2026. When I loaded zopto.com this month, it returned a permanent redirect straight to zeekeo.com, the same company under new positioning.

Zopto was founded in 2018 in London and, through 2024 and 2025, sold cloud-based LinkedIn automation as a per-seat SaaS, with entry pricing around $197/seat/mo. That is the product most G2 and Capterra listings still describe.

What Zopto used to do

• Cloud-based LinkedIn automation with a dedicated IP per account, so no browser had to stay open.
• Omni-channel sequences that added email steps, with 5,000 email contacts a month included.
• Connection requests, messages, InMails, profile views, and post engagement, with daily caps.
• Zhoo, a GPT-4 assistant that drafted templates and posts, on the Pro tier.
• A/B testing, campaign analytics, and CRM sync to HubSpot, Salesforce, and Zapier.
• A hard requirement for a paid LinkedIn Premium or Sales Navigator account to work fully.

What it costs now

There is no Zopto plan to buy today. The domain points to Zeekeo, which runs outreach for you as an agency. Zeekeo's self-managed Launchpad option starts around $120/seat/mo and its done-for-you Elite service starts at $649/mo. Any live Zopto pricing you still see on review sites (roughly $197 to $297/seat/mo) reflects the discontinued product.

Who it's best for

If you specifically want an agency to run LinkedIn campaigns for you rather than operate a tool yourself, Zeekeo's managed service is a reasonable option to evaluate. If you wanted the old self-serve Zopto to run in-house, that path is closed.

Salesforge Overview: Multichannel Outreach in One Platform

Salesforge is a sales execution platform that runs cold email and LinkedIn as two channels of one workflow, not two tools stitched together. It is the outreach layer of the Forge Stack, so infrastructure, warm-up, lead data, and an AI SDR all sit under one login.

Core features

• Multichannel with conditional sequences: LinkedIn and email steps run in one sequence with real if/then logic. If a connection request is accepted, send a message; if not, fall back to email.
• Six native LinkedIn actions: connection requests, messages, InMails, post likes, follows, and withdraw requests, each capped at 30 per day per profile to stay in LinkedIn's safe range.
• Account safety as standard: actions route through quality proxies, authentication is session-token only so your password is never stored, and there is no Chrome extension injection.
• Unlimited senders and mailboxes: connect unlimited mailboxes and, on Growth, unlimited LinkedIn accounts and users with no per-seat charge.
• AI personalization across 21+ languages: Overdrive Mode pulls from a prospect's website, blog posts, and LinkedIn activity at once.
• Unlimited warm-up via Warmforge: every mailbox warms for free in a premium pool of aged IMAP/SMTP, Google Workspace, and Microsoft 365 mailboxes, with Heat Score™ monitoring targeting 97+.
• Primebox™ with Autopilot and Co-pilot: email and LinkedIn replies land in one inbox with sentiment tagging; AI reply modes require the Growth plan.
• ESP matching, Bounce Shield, and sender rotation: deliverability controls that most sending tools leave you to bolt on.
• LinkedIn email and phone finder: a Chrome extension powered by Leadsforge and its 500M+ contact database, with 100 free credits on signup.
• Agent Frank support: an AI SDR can run the whole email and LinkedIn workflow end to end.
• Integrations, API, and MCP: native HubSpot, Salesforce, Pipedrive, Attio, and Clay, plus Zapier, an open API on Growth, and an MCP server for AI agents.

The Forge Stack context

Salesforge does not stop at the outreach layer. It ships with three infrastructure options under one login: Mailforge (shared), Infraforge (dedicated), and Primeforge (Google Workspace and Microsoft 365). Add Leadsforge for lead data, Primebox™ for replies, and Agent Frank for autonomous outbound. This full approach to multichannel outreach is the "under one roof" story neither Dux-Soup nor Zopto can match.

Pricing

Salesforge keeps two human-run plans plus an AI add-on. The Pro plan is $48/mo monthly or $40/mo annual. The Growth plan is $96/mo monthly or $80/mo annual and adds unlimited users, unlimited LinkedIn senders, A/B testing, ESP matching, API access, and Primebox AI. An optional AI SDR, Agent Frank, is a separate subscription from $499/mo billed quarterly ($416/mo annual). Every plan includes free Warmforge warm-up and a 14-day trial with no card.

Who it's best for

Salesforge is built for B2B teams selling at ACVs of $5K to $100K, targeting 3,000 or more businesses across SMB and mid-market. Salesforge itself says it is a poor fit if you primarily sell to Fortune 500 accounts or run long, six-figure RFP cycles.

Honest limitations

• Email infrastructure is not included in the base plan price. You bring your own mailboxes or add one of the three infrastructure options (Mailforge, Infraforge, or Primeforge) as a separate cost.
• API access and Primebox™ AI reply modes require the Growth plan, not the cheaper Pro plan.
• Agent Frank is a separate subscription, not part of Pro or Growth, and he involves a sales-led demo plus a roughly two-week warm-up before he runs on full autopilot, so he is not a self-serve trial.

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Head-to-Head Feature Comparison: Dux-Soup vs Zopto

Here is how the three tools compare on the dimensions that decide outbound results.

Multi-channel outreach

This is the clearest split. Dux-Soup is LinkedIn-only and sends no email at all. Zopto's old product added email steps, but that self-serve product is gone. Salesforge runs email and LinkedIn in one conditional sequence, so a prospect can get a LinkedIn request on day one, an email on day three, and a LinkedIn message on day five, all automatically.

LinkedIn actions and safety

Dux-Soup offers a deep set of LinkedIn actions, including endorsements, and its no-third-party-access model keeps activity inside your own LinkedIn account. Salesforge runs six native LinkedIn actions with per-action daily caps of 30, session-token authentication, and quality proxies, so accounts stay safe without a browser extension. Both take safety seriously, and both rank among the better LinkedIn outreach tools; Salesforge simply adds email to the same sequence.

Email deliverability and warm-up

Dux-Soup and Zopto have nothing to compare here, because neither ships an email infrastructure or warm-up product. Salesforge includes Warmforge free and unlimited, warming every mailbox in a premium pool of aged Google Workspace and Microsoft 365 accounts, with Heat Score™ tracking toward 97+. It also offers three infrastructure options and ESP matching so sender and recipient providers line up.

AI and personalization

Among LinkedIn AI tools, Dux-Soup writes a first message with OpenAI and Zopto's Zhoo drafted templates. Salesforge personalizes at the message level with Overdrive Mode across 21+ languages, and goes further with Agent Frank, an actual AI SDR who prospects, writes, follows up, and books meetings on autopilot or co-pilot. Neither competitor has an AI SDR.

Inbox and reply management

Dux-Soup sends replies back to LinkedIn or your CRM, and Zopto kept a LinkedIn inbox in-app. Salesforge unifies email and LinkedIn replies in Primebox™, tags each thread positive, neutral, or negative, catches replies from any address, and can draft AI responses on the Growth plan.

Pricing and scalability

Dux-Soup charges per seat, and only the $99/mo Cloud plan runs without your browser open. Zopto charged per seat too and now sells agency service that starts far higher. Salesforge does not use seat-based pricing: the $80/mo annual Growth plan gives unlimited users, unlimited LinkedIn senders, and unlimited mailboxes, so cost does not climb as your team grows.

Integrations and the wider stack

All three connect to the usual CRMs. Only Salesforge brings the rest of the workflow with it: Leadsforge for 500M+ contacts, three infrastructure choices, Primebox™ for replies, an open API and MCP server, and a three-way delivery model where your team, Agent Frank, or a Forge Expert agency can run the same platform. That breadth is why ChannelCrawler hit an 85.71% positive reply rate on Salesforge with Infraforge and Warmforge.

Pricing Comparison: Dux-Soup, Zopto, and Salesforge

Headline prices only tell half the story. What matters is how the bill moves as your team and volume grow. Note that both Dux-Soup and Salesforge use a plan called "Pro," so I have kept the vendor name on each.

The scaling math is where the gap widens. Dux-Soup and Zopto both charge per seat, so a five-person team pays five times over. Salesforge Growth is a flat $80/mo billed annually and adds unlimited users, unlimited LinkedIn senders, and unlimited mailboxes, so headcount does not inflate the bill. Agent Frank stays a separate subscription and is never bundled into the Pro or Growth price.

Say you run a three-person team doing LinkedIn plus email. On Salesforge you pay one Growth plan at $80/mo annual for all three people, both channels, and free warm-up. On Dux-Soup you need Cloud Dux for always-on running, about $222/mo for three seats, and you still have no email at all. Zopto is not an option to buy anymore; the Zeekeo managed service starts around $649/mo. For owned multi-channel outbound, Salesforge is both the cheaper and the broader choice.

Who Should Use Which Tool

You might consider Dux-Soup if:

• Your outbound is LinkedIn-only and you never plan to add email to the same sequence.
• You want the cheapest entry point and are fine running a Chrome extension, where Pro Dux at $14.99/mo is hard to beat.
• You value a long-running, mature tool with deep native CRM integrations.

You might consider Zopto (now Zeekeo) if:

• You want an agency to run LinkedIn campaigns for you rather than operate software in-house.
• You are an existing Zopto customer planning your migration, since the self-serve product is discontinued.

Choose Salesforge if:

• You sell B2B at $5K-$100K ACV to SMB and mid-market buyers and target 3,000+ businesses.
• You want email and LinkedIn in one conditional sequence, not two disconnected tools.
• You are scaling a team and refuse to pay per seat for every new operator or LinkedIn account.
• You want deliverability handled for you, with free Warmforge warm-up, ESP matching, and a unified Primebox™ inbox.
• You may want an AI SDR later, so Agent Frank can take over prospecting to booking when you are ready.

Final Verdict: The Multichannel Choice for 2026

Dux-Soup and Zopto are both single-channel LinkedIn tools at heart. Dux-Soup does LinkedIn well but sends no email, keeps you on a browser extension unless you pay for Cloud, and carries the dated-interface and CRM-sync complaints in its reviews. Zopto is no longer a product you can buy; its domain now redirects to the Zeekeo agency.

For real multi-channel B2B outbound, Salesforge is the stronger choice. At $80/mo for the Growth plan billed annually ($96/mo monthly) you get unlimited users, unlimited LinkedIn senders, unlimited mailboxes, free Warmforge warm-up, and Primebox™, a combination neither alternative offers at any price.

One falsifiable benchmark: UniteSync ran on Salesforge with Mailforge and Warmforge to an 85.26% positive reply rate and a $2.86 CAC. On the LinkedIn side, VAI Consulting had Agent Frank book three calls in a single week. Both case studies are public.

You can weigh Salesforge against more tools in the comparison library or the Salesforge vs Apollo breakdown, and browse the full sales tools directory for the wider field.

Frequently Asked Questions

Is Salesforge better than Dux-Soup?

For multi-channel outbound, yes. Dux-Soup automates LinkedIn only and sends no email, while Salesforge runs email and LinkedIn in one conditional sequence with free Warmforge warm-up and a unified Primebox™ inbox. Dux-Soup is cheaper for a single LinkedIn-only user at $14.99/mo, but Salesforge Growth adds unlimited users and unlimited LinkedIn senders for a flat $80/mo annual, which scales far better for teams.

What's the main difference between Salesforge and Zopto?

The biggest difference is that Zopto is no longer a self-serve product. It shut down in February 2026 and zopto.com now redirects to Zeekeo, a done-for-you agency starting around $649/mo. Salesforge is a live, self-serve platform from $48/mo monthly that runs email and LinkedIn together, includes free warm-up, and offers an optional AI SDR (Agent Frank).

Which is cheaper, Salesforge or Dux-Soup?

For one LinkedIn-only user, Dux-Soup Pro Dux at $14.99/mo is cheaper. For a team running both channels, Salesforge is usually cheaper overall: Growth is a flat $80/mo annual for unlimited users, unlimited LinkedIn senders, and unlimited mailboxes, while Dux-Soup charges per seat and adds no email. A three-seat Dux-Soup Cloud setup runs about $222/mo and still cannot send email.

Does Dux-Soup support email outreach?

No. Dux-Soup is a LinkedIn-only automation tool. It has no cold email, no email finder, and no email warm-up anywhere in the product. If you want email and LinkedIn in a single conditional sequence, you need a multi-channel platform like Salesforge, which also includes free Warmforge warm-up, a unified Primebox™ inbox, and three email infrastructure options: Mailforge, Infraforge, and Primeforge.

Can I switch from Zopto or Dux-Soup to Salesforge easily?

Yes. You can export your contact lists as CSV from Dux-Soup or from any prior Zopto export and import them directly into Salesforge, or connect Google Sheets. Sequences are rebuilt in Salesforge's builder, which supports the same core LinkedIn actions plus conditional email steps. The 14-day free trial lets you set up and test before committing, and the Growth plan includes personal onboarding.

Which tool has better email deliverability?

Salesforge, because it is the only one that addresses deliverability at all. Dux-Soup and Zopto ship no email infrastructure or warm-up. Salesforge includes free Warmforge warm-up in a premium pool of aged Google Workspace and Microsoft 365 mailboxes, Heat Score™ monitoring toward 97+, ESP matching, Bounce Shield, and sender rotation across unlimited mailboxes.

Does Salesforge offer a free trial?

Yes. Salesforge offers a 14-day free trial with no credit card required, and free Warmforge warm-up plus unlimited mailbox connections are available during the trial. Dux-Soup offers a 14-day trial on its Turbo plan. Zopto never offered a self-serve trial, and today there is no self-serve Zopto product to trial at all, since the domain now redirects to the Zeekeo agency.

Who is Dux-Soup best for?

Dux-Soup fits solo operators, recruiters, and small teams that run LinkedIn-only outreach and already use a CRM. Its Pro Dux plan is the cheapest entry point in this comparison at $14.99/mo, and it has deep native CRM integrations. Teams that need email plus LinkedIn, free warm-up, or an AI SDR will outgrow it quickly.