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

I run outbound for a living, and I have paid for LinkedIn tools, cold email tools, warm-up services, and email finders as four separate bills. So when I test a platform, the first question I ask is simple: how much of the stack does it actually replace, and what happens to my costs when I add a second or third sender?

Skylead answers that with one flat $100 per-seat plan that bundles LinkedIn and email. Dux-Soup answers it with cheap LinkedIn automation that runs in your browser. Salesforge answers it differently, by removing seats from the pricing entirely and putting email, LinkedIn, warm-up, and an AI SDR under one login. This is the comparison I wish I had before I signed up for any of them.

Multichannel Outreach at a Glance: Skylead vs Dux-Soup

Here is the fast version before I dig into each tool. Every cell is a specific fact, checked against each vendor's live pricing page in 2026.

Skylead Overview: Features, Pricing, and Limitations

Skylead is a cloud-based platform that combines LinkedIn automation with cold email in one place. It was founded in 2019 and is based in Belgrade, Serbia. The homepage says 10,000+ users across 93 countries run on it, and it is available in 7 languages. Because it runs in the cloud rather than as a browser extension, it does not need your computer switched on to keep sending.

Its headline feature is Smart Sequences, which add if/else logic to a campaign. If a prospect accepts a LinkedIn request, the sequence can branch one way; if they do not, it can fall back to email. This is a genuine strength for people who want LinkedIn and email in a single flow rather than two disconnected campaigns.

Skylead's core features:

• Smart Sequences: conditional LinkedIn plus email steps with if/else branching based on prospect behavior.
• Unlimited email accounts per seat: connect many sending mailboxes under one seat, with 100,000 emails per month included.
• Built-in email finder: email discovery and verification credits are included, so you often skip a separate finder tool.
• Image and GIF personalization: add personalized visuals to messages at scale.
• Email warm-up: bundled warm-up, though the warm-up is capped at 100 slots per team.
• Smart Inbox: a unified view where LinkedIn and email replies land together.
• Dedicated IP: each LinkedIn account is assigned a dedicated IP for safer sending.
• CRM connections: integrations with HubSpot, Salesforce, and Pipedrive, plus API and webhooks.

Skylead uses one plan. The All-in-One plan is $100 per seat each month, where one seat covers one LinkedIn account plus unlimited email accounts. Paying annually means you pay for 10 months and get 2 free, which works out to roughly $83 per seat each month ($1,000 per year). There is a 7-day free trial and no permanent free plan. White-label pricing for agencies is custom and arranged through sales.

Skylead fits solo founders, SDRs, recruiters, and small agencies that want LinkedIn and email in one tool without stitching four subscriptions together. For a single operator, one flat price with everything included is easy to reason about.

What reviewers say about Skylead

The honest limitations are worth naming:

• Per-seat pricing scales linearly. There are no volume discounts on the standard plan, so 5 seats is $500 each month before any annual saving.
• Account restriction risk. Reviewers report LinkedIn restrictions even inside recommended limits, so a backup account is wise.
• You bring your own data. Skylead automates the outreach but does not supply prospect data or lead scoring, so list quality is on you.
• Support and stability gaps. Some users cite slow support on complex issues and occasional bugs, with no enterprise uptime SLA.

Dux-Soup Overview: Features, Pricing, and Limitations

Dux-Soup is one of the oldest names in LinkedIn automation, launched in 2015 by Supertec BV. The homepage cites 300,000 users. It comes in two flavors: a Chrome extension that runs from your own browser, and a cloud version that runs on Dux-Soup's own infrastructure. It is purely a LinkedIn tool, so there is no cold email, no email finder, and no email warm-up anywhere in the product.

The extension automates the basic LinkedIn actions well: it visits profiles, which triggers a "someone viewed your profile" notification, then sends connection requests and follow-up messages. On the paid tiers it runs drip campaigns with up to 12 messages and customizable delays.

Dux-Soup's core features:

• Profile visits and tagging: automated visits that trigger notifications, plus tagging to organize prospects.
• Connection requests and messaging: templated invites and follow-ups using LinkedIn variables like first name.
• Drip campaigns: up to 12 messages with hour, day, or week delays (Turbo and Cloud).
• Lead management dashboard: campaign statistics and a central LinkedIn inbox.
• CRM integrations: HubSpot, Salesforce, Pipedrive, and others, on Turbo and above.
• API access: available on Turbo and Cloud for custom workflows.
• Cloud option: Cloud Dux runs 24/7 without your browser open.

Dux-Soup has three individual tiers. Pro Dux is $14.99/mo ($11.25/mo billed annually) and handles basic connections and messages. Turbo Dux is $55/mo ($41.25/mo annual) and adds drip campaigns, CRM integration, and analytics. Cloud Dux is $99/mo ($74.17/mo annual) and moves everything into the cloud so it runs always-on. Annual billing saves 25%. A 14-day free trial is offered on the Turbo tier. Agency plans scale per seat, with the Cloud Agency plan at $371/mo for 5 seats.

Dux-Soup fits budget-conscious individuals and recruiters who only need LinkedIn activity and do not want to pay cloud-tool prices. For a single user doing light LinkedIn outreach, the $14.99 entry price is the cheapest way in.

What reviewers say about Dux-Soup

The limitations are consistent across reviews:

• LinkedIn only. There is no email, no finder, and no warm-up, so a multichannel motion means buying and stitching in separate tools.
• Browser must stay open. Pro and Turbo run as a Chrome extension, so your machine has to be on and awake unless you pay for Cloud Dux.
• Dated interface and thin team features. Reviewers call the dashboard clunky, and managing several accounts is awkward because it was not built for teams.
• Integration friction. CRM connections can feel like workarounds, with reported sync delays, as the 2-star review above shows.

If you want to see how a modern multichannel platform handles the LinkedIn side, this LinkedIn outreach guide walks through the newer approach.

Salesforge Overview: Multichannel Outreach on the Forge Stack

Salesforge is an all-in-one cold outreach platform that runs email and LinkedIn as two channels of one workflow. It is the outreach layer of a wider set of products called the Forge Stack, which also covers infrastructure, warm-up, lead data, and an autonomous AI SDR. The pitch is to replace a duct-taped set of point tools with one system under a single login.

The part that changes the math is the pricing model. Salesforge does not charge per seat. On the Growth plan you get unlimited users, unlimited LinkedIn senders, and unlimited mailboxes, so adding people or senders does not add cost.

Salesforge's core features:

• Conditional multichannel sequences: LinkedIn and email steps in one sequence with real if/then branching.
• Six native LinkedIn actions: connection requests, messages, InMails, post likes, follows, and withdraw requests.
• Unlimited mailboxes on every plan: connect as many sending mailboxes as you need, with no per-mailbox fee.
• Unlimited LinkedIn senders (Growth): run many LinkedIn accounts without per-account pricing.
• Free unlimited Warmforge warm-up: a premium warm-up pool of real Google Workspace and Microsoft 365 mailboxes, with a per-mailbox Heat Score™.
• Primebox™ unified inbox: email and LinkedIn replies in one place, with sentiment analysis and AI draft replies on Growth.
• Overdrive Mode personalization: AI personalization that pulls from a prospect's website, blog, and LinkedIn posts.
• Agent Frank, the AI SDR: he prospects, writes, follows up, and books meetings across email and LinkedIn.
• Owned infrastructure options: Mailforge, Infraforge, and Primeforge for domains and mailboxes at scale.
• Lead data via Leadsforge: a chat-based search across a 500M+ contact database.
• Integrations and API: HubSpot, Salesforce, Pipedrive, Attio, Clay, Zapier, an API (Growth), and an MCP server.
• SOC 2 compliant: badged across the Salesforge products.

Salesforge sits inside the Forge Stack, so the infrastructure (Mailforge, Infraforge, Primeforge), deliverability (Warmforge), lead data (Leadsforge), and AI SDR (Agent Frank) are built to work together natively, with no Zapier glue between them. You can start with just the outreach product and add the rest as you grow.

On pricing, the Pro plan is $48/mo monthly or $40/mo annual, and the Growth plan is $96/mo monthly or $80/mo annual (annual reflects two months free). Growth adds A/B testing, multi-language sequences, ESP matching, the full integrations library, API access, and Primebox AI. Agent Frank is a separate subscription from $499/mo billed quarterly ($416/mo billed annually), and he requires a demo plus a two-week warm-up before he starts. Email infrastructure is not bundled into the base plan; you connect your own mailboxes or add one of the Forge infrastructure products.

Salesforge is built for B2B teams selling at ACVs between $5K and $100K, targeting 3,000 or more businesses at SMB and mid-market level. Salesforge itself says it is a poor fit for Fortune 500 procurement, long RFP cycles, and six- to seven-figure bespoke deals. Named outcomes back the fit: UniteSync reached an 85.26% positive reply rate at a $2.86 CAC on Salesforge, Mailforge, and Warmforge, and ChannelCrawler hit an 85.71% positive reply rate.

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

Here is how the three tools compare where it matters. I have kept each section to the facts I could verify.

Multichannel outreach

This is the clearest split. Dux-Soup is LinkedIn only, so a multichannel motion means bolting on a separate email tool, a finder, and a warm-up service, which reviewers estimate adds $50 to $150 each month. Skylead does run LinkedIn and email in one Smart Sequence with if/else logic, which is a real advantage over Dux-Soup here. Salesforge also runs email and LinkedIn in one conditional sequence, and adds all six native LinkedIn actions (including InMails, post likes, and withdraws) rather than just connect and message. For a deeper look at running both channels together, see these multichannel outreach tools.

Email deliverability and warm-up

Dux-Soup has nothing here, because it does not send email at all. Skylead bundles email warm-up, which is a genuine plus versus tools that charge extra, though its warm-up is capped at 100 slots per team. Salesforge includes free, unlimited Warmforge warm-up on every plan, using a premium pool of real Google Workspace and Microsoft 365 mailboxes and a per-mailbox Heat Score™ that flags a mailbox when it drops below healthy. If deliverability is your worry, this email deliverability guide covers the fundamentals.

AI and personalization

All three offer some personalization. Skylead does image and GIF personalization, and Dux-Soup uses basic LinkedIn variables like first name. Salesforge adds Overdrive Mode, which writes from a prospect's website, blog posts, and LinkedIn posts, and it goes further with Agent Frank, an autonomous AI SDR that runs the whole cycle across email and LinkedIn. Neither Skylead nor Dux-Soup has an AI SDR.

Inbox and reply handling

Dux-Soup gives you a central inbox for LinkedIn only. Skylead's Smart Inbox does combine LinkedIn and email replies, which is useful. Salesforge's Primebox™ also unifies email and LinkedIn, and it is included free; it tags replies by sentiment, catches replies even when a prospect answers from a different address, and drafts AI replies on the Growth plan. That last part matters because reply management, not sending, is where most cold campaigns leak pipeline.

Pricing and scalability

This is where the models diverge hardest. Skylead charges $100 per seat, and Dux-Soup charges per user, so both get more expensive with every person you add. Salesforge charges a flat Growth price with unlimited users and unlimited LinkedIn senders, so a 3-person team pays the same as one person on the software side. I will put exact numbers on that in the pricing section below.

Infrastructure and integrations

Neither Skylead nor Dux-Soup sells its own email infrastructure; you connect your own mailboxes (and Dux-Soup has no email side at all). Salesforge offers three owned infrastructure options: Mailforge (shared), Infraforge (private, dedicated IPs), and Primeforge (real Google and Microsoft mailboxes). All three tools integrate with the major CRMs. Salesforge adds an API on Growth, a CLI, and an MCP server that connects Salesforge to AI assistants directly.

Pricing Comparison: Skylead, Dux-Soup, and Salesforge

Pricing is where the choice usually gets made, so here are the plans side by side, with vendor prefixes so the tiers stay clear.

The headline prices hide what happens when you scale. Skylead and Dux-Soup both price per seat or per user, so the bill climbs in a straight line as your team grows. Salesforge Growth stays flat because it does not sell seats.

Here is a concrete scenario. Say a 3-person team wants to run LinkedIn plus email. On Skylead that is 3 seats at $100, so $300/mo (about $250/mo annual). On Dux-Soup Cloud that is 3 users at $99, so $297/mo, and you still have no email, so add a separate email tool, finder, and warm-up on top. On Salesforge Growth the software is $96/mo monthly ($80/mo annual) for the whole team, with unlimited users and unlimited LinkedIn senders; you add email infrastructure separately (from a few dollars per mailbox through Mailforge or Infraforge), and warm-up and Primebox are free. For a growing team, the per-seat tools cross over Salesforge quickly.

One note on Agent Frank: he is a separate subscription and is never included in the Pro or Growth price. If you want the AI SDR, budget from $499/mo billed quarterly on top of your plan.

Who Should Use Which Outreach Tool

Different tools fit different situations. Here is my honest read.

You might consider Skylead if:

• You are a solo operator or a very small team, and one flat $100 seat that bundles LinkedIn, email, warm-up, and a finder is simpler than assembling separate tools.
• You want cloud-based LinkedIn plus email with conditional Smart Sequences and do not plan to scale past a handful of seats.

You might consider Dux-Soup if:

• Your outreach is LinkedIn only, your budget is tight, and Pro Dux at $14.99/mo is the cheapest way to automate connections and messages.
• You are a single user who is fine keeping a browser open (Pro/Turbo) or paying for Cloud Dux for always-on runs.

Choose Salesforge if:

• You sell B2B at $5K-$100K ACV to SMB or mid-market buyers and target 3,000+ businesses.
• You want email and LinkedIn in one conditional sequence, with free warm-up and a unified Primebox inbox.
• You are done paying per seat and want unlimited users, unlimited LinkedIn senders, and unlimited mailboxes on one flat plan.
• You run an agency or a team and need owned infrastructure options and account-level control.
• You want the option of an AI SDR in Agent Frank to run outbound end to end.

If you want the two-tool versions of this decision, I have written up Salesforge vs Skylead and Salesforge vs Dux-Soup in more depth, and there is a full comparison library if you are weighing other tools.

Final Verdict: The Stronger Multichannel Outreach Choice

Skylead and Dux-Soup are both good at what they are. Skylead is a capable cloud tool for one operator running LinkedIn and email, and for LinkedIn-only work on a tight budget, Dux-Soup Pro at $14.99/mo is the cheaper, simpler pick. But Dux-Soup has no email at all, Skylead charges per seat, and neither one owns email infrastructure or ships an AI SDR.

For real multichannel 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™, which is a combination neither alternative offers at any price. Add three owned infrastructure options and an optional AI SDR, and it stops being a single tool and becomes an outbound system.

One falsifiable benchmark to hold me to: UniteSync ran on Salesforge, Mailforge, and Warmforge to an 85.26% positive reply rate and a $2.86 CAC, and VAI Consulting booked 3 calls in a single week with Agent Frank. Both case studies are public.

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