Dux-Soup vs Kanbox
An independent, review-free comparison compiled by the SaaSTracker editorial team. Both products are profiled in full, and neither can pay for placement here.
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The short answer
Both sides assessedDux-Soup compared with Kanbox
Both are extension-based tools with a pipeline view, but Kanbox is French with EU data residency, a Kanban CRM front end, and an entry price of $20, while Dux-Soup is Dutch-operated with a deeper native CRM connector list and a genuine cloud upgrade path. Choose Kanbox for EU residency and the visual pipeline; choose Dux-Soup for CRM integration depth and the ability to move to always-on execution later.
Kanbox compared with Dux-Soup
Both are extension-rooted tools with a pipeline view and a decade of difference in age. Dux-Soup is Dutch, ten years old, with the best native CRM connector list here and a cloud upgrade path at $99. Kanbox is French, three years old, cheaper on annual billing, and better at visual pipeline management and enrichment. Choose Dux-Soup for vendor longevity and CRM depth; choose Kanbox for EU residency, the Kanban view, and the built-in email finder.
Choose Dux-Soup if
Buyers who want a long-established vendor with a genuine upgrade path, starting at $55 on their own machine and moving to $99 cloud execution when unattended running becomes necessary, and teams whose CRM is HubSpot, Pipedrive, Salesforce, Freshsales, SharpSpring, or HighLevel and who want a native connector rather than a Zapier bridge.
Choose Kanbox if
European solo operators, small sales teams, and boutique agencies who want LinkedIn prospecting, enrichment, and a visual pipeline in one affordable tool with data held on EU servers under GDPR, and who run moderate rather than aggressive volume.
Side by side
13 attributes| Attribute | Dux-Soup | Kanbox |
|---|---|---|
| Category | ||
| Starting price | $55 per seat per month (STACKED local), or $41.25 per month billed annually (14 days trial) | $20 per month (Starter), or $12 per month billed annually (15 days trial) |
| Pricing model | Per-seat pricing across two editions, local and cloud, with fixed prepaid or flexible metered seats for teams and metered billing for agencies; the edition determines the execution model. | Tiered subscription priced per LinkedIn account on the individual plans and per bundle on the agency plans, with email finder credits sold separately and never expiring. |
| Free plan | No | No |
| Free trial | 14 days, no credit card required | 15 days with full Starter access plus 30 email credits, no credit card required |
| Best for | Buyers who want a long-established vendor with a genuine upgrade path, starting at $55 on their own machine and moving to $99 cloud execution when unattended running becomes necessary, and teams whose CRM is HubSpot, Pipedrive, Salesforce, Freshsales, SharpSpring, or HighLevel and who want a native connector rather than a Zapier bridge. | European solo operators, small sales teams, and boutique agencies who want LinkedIn prospecting, enrichment, and a visual pipeline in one affordable tool with data held on EU servers under GDPR, and who run moderate rather than aggressive volume. |
| Setup time | Twenty minutes for STACKED local: install the desktop app, open LinkedIn, run a search, scan the results, and start a campaign. The cloud edition adds an account provisioning step handled by the vendor and take a day or so to be fully live. | Under thirty minutes. The vendor claims a two-click extension install with no technical configuration, and that is roughly accurate. Scraping a first Sales Navigator list and running the email finder over it takes another twenty minutes. |
| Learning curve | Moderate, and mostly caused by the edition structure rather than the software. Understanding whether you need Local or Cloud, on fixed or flexible seats, takes longer than learning to build a campaign. The campaign builder itself is conventional and the documentation is mature. | Low. The Kanban metaphor is immediately legible to anyone who has used a project board, and the smart inbox behaves the way an inbox should. The only confusing part is the tier structure, where lead ceilings jump from 600 to 75,000 and the defining Kanban feature only appears at Pro. |
| Platforms | Desktop app for Mac and Windows (STACKED local), Managed cloud execution (Cloud editions), Web dashboard for campaigns, inbox, and reporting | Google Chrome extension, Cloud application with data on European servers, Web dashboard for pipelines, inbox, and campaigns |
| Compliance | GDPR (operated by a Dutch entity subject to EU data protection law) | GDPR, with data stored on European servers |
| Founded | 2015 | 2023 |
| Headquarters | Netherlands (operated by Supertec BV) | France |
| Ownership | Privately held, founder-led | Privately held, founder-led |
Strengths and limitations
Dux-Soup
Strengths
- Ten years of continuous operation and over 300,000 claimed users, which in a category where LinkedIn enforcement regularly removes vendors is the strongest available evidence of durability.
- Two execution models under one ladder, so you can start on your own machine and move to managed cloud execution without changing vendors or rebuilding campaigns.
- The best native CRM connector list here: HubSpot, Salesforce, Pipedrive, Freshsales, SharpSpring, and HighLevel directly, not through a Zapier bridge.
- Slack and Microsoft Teams notifications, with Teams support being genuinely uncommon in this category.
Limitations
- The entry price rose in practice when the $14.99 Pro edition was retired: $55 a seat is now the least you can pay.
- STACKED local stops the moment the machine running it is off. If unattended running matters, you are on the $99 cloud edition and comparing against a very different set of competitors.
- No email finder, no email sending, and no multichannel sequencing at all. LinkedIn is the whole product.
- Cloud at $99 per seat is expensive against multi-account cloud rivals, and the agency rate is no longer published, so agency economics cannot be compared without a quote.
Kanbox
Strengths
- European data residency from a French company under GDPR, which for many EU buyers is the deciding factor against a category dominated by US and free-zone vendors.
- The Kanban pipeline plus smart inbox combination makes Kanbox a lightweight CRM rather than a fire-and-forget sender, which is genuinely different from most tools here.
- Email finder credits never expire, so unused balance carries forward instead of being lost each month.
- The annual discount runs 30 to 40 percent across every tier, making the effective prices ($12, $30, $50, $279) very competitive.
Limitations
- No dedicated per-account IP below the Agency tier. Proxy support is an Agency feature, so individual and small-team users rely on behavioural simulation alone, which is a weaker safety posture than SalesRobot, Expandi, or LinkedCamp offer at similar prices.
- The vendor does not publish specific daily action limits, so you cannot compare its safety ceiling against competitors that do. Ask before committing an important account.
- Extension dependency means parts of the workflow expect a browser session, so this is not the fully unattended cloud execution that Closely or SalesRobot provide.
- The Kanban pipelines that define the product are gated to the $80 Pro tier, so the cheaper plans are a different and much plainer product.
Pricing compared
Dux-Soup
Per-seat pricing across two editions, local and cloud, with fixed prepaid or flexible metered seats for teams and metered billing for agencies; the edition determines the execution model.
- STACKED local$55
- STACKED cloud$99
- Teams$55 and $99
- STACKED agencyMetered
STACKED local at $55 is fair rather than cheap: you get unlimited drip campaigns, a lead dashboard, and the best native CRM connector list in the category, from a vendor with ten years of history, in exchange for accepting that campaigns only run while your machine is on. Cloud at $99 removes that constraint and is priced at the top of what a single-account tool can justify, since Closely covers three accounts for $127 and Aimfox covers twenty for $499. The place Dux-Soup wins decisively is the upgrade path: few vendors let you start on your own machine and end at managed cloud execution without changing tools, and for a buyer who genuinely does not know yet how far this channel will go, that optionality is worth paying for.
Kanbox
Tiered subscription priced per LinkedIn account on the individual plans and per bundle on the agency plans, with email finder credits sold separately and never expiring.
- Starter$20
- Essential$45
- Pro$80
- Agency 10$399
- Agency 30 and Agency Unlimited$749 and $1,199
On annual billing Kanbox is among the best value propositions in this category: $50 a month for five simultaneous campaigns, a 75,000 lead ceiling, Kanban pipelines, AI prompts, webhooks, an API, an email finder with non-expiring credits, and EU data residency is a lot of product for the money. The Agency 10 bundle at $279 annually for up to ten accounts with proxy support works out cheaper per account than most rivals' agency tiers. What you are not paying for is a documented, enforced safety architecture: below the Agency tier there is no per-account IP separation, and the vendor does not publish daily action ceilings. That gap is why Kanbox is excellent value for moderate-volume European operators and the wrong choice for anyone running an account hard.
Editorial verdict on each
Dux-Soup
Dux-Soup is the safe, unglamorous choice, and there is a real argument for making it. It has survived a decade of LinkedIn enforcement, it has the best native CRM connector list in the category by some distance, its local edition runs from your own machine rather than a vendor datacentre, and it needs no Sales Navigator seat, so a complete working setup is $55 a month. Above all, it lets you start on your own machine and move to managed always-on cloud execution without changing tools. What you give up is modernity and scale economics: there is no email channel, no event extraction, no voice messages, the interface shows its age, and Cloud at $99 a seat is expensive next to Aimfox or HeyReach. Buy STACKED local at $55 if LinkedIn is your channel, your CRM is on the native list, and you value a vendor that will still exist in three years.
Read the full Dux-Soup profileKanbox
Kanbox is the best answer in this category for a European small business that wants its prospect data to stay in Europe, and it is a strong answer generally for anyone who thinks a LinkedIn tool should track conversations rather than just start them. The Kanban pipeline and smart inbox turn it into a lightweight CRM, the email finder is bundled with credits that never expire, the annual discount halves an already low price, and Agency 10 at $279 annually for up to ten accounts is one of the cheaper agency configurations available. The reservation is specific and important: below the Agency tier there is no per-account IP separation, and the vendor does not publish its daily action ceilings, so the safety architecture is less documented and less infrastructural than SalesRobot's, Expandi's, or LinkedCamp's at similar money. Buy it on the Pro or Agency tier for moderate-volume prospecting, wire the webhooks into a CRM early so the pipeline state is not the only copy, and do not use it to push an account you cannot replace.
Read the full Kanbox profileDux-Soup profile last reviewed 2026-09-26; Kanbox last reviewed 2026-09-26. Pricing is compiled from public sources and can change without notice. See our methodology.
The best in LinkedIn Outreach
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Frequently asked questions
6 questionsWhat is the difference between Dux-Soup and Kanbox?
Both are extension-based tools with a pipeline view, but Kanbox is French with EU data residency, a Kanban CRM front end, and an entry price of $20, while Dux-Soup is Dutch-operated with a deeper native CRM connector list and a genuine cloud upgrade path. Choose Kanbox for EU residency and the visual pipeline; choose Dux-Soup for CRM integration depth and the ability to move to always-on execution later.
Is Dux-Soup or Kanbox cheaper?
Dux-Soup starts at $55 per seat per month (STACKED local), or $41.25 per month billed annually (14 days trial). Kanbox starts at $20 per month (Starter), or $12 per month billed annually (15 days trial). The billing models differ, so the entry price is rarely the whole cost. Dux-Soup pricing model: Per-seat pricing across two editions, local and cloud, with fixed prepaid or flexible metered seats for teams and metered billing for agencies; the edition determines the execution model. Kanbox pricing model: Tiered subscription priced per LinkedIn account on the individual plans and per bundle on the agency plans, with email finder credits sold separately and never expiring.
Does Dux-Soup or Kanbox have a free plan?
Dux-Soup has no free plan. Trial terms: 14 days, no credit card required. Kanbox has no free plan. Trial terms: 15 days with full Starter access plus 30 email credits, no credit card required.
Who should choose Dux-Soup?
Buyers who want a long-established vendor with a genuine upgrade path, starting at $55 on their own machine and moving to $99 cloud execution when unattended running becomes necessary, and teams whose CRM is HubSpot, Pipedrive, Salesforce, Freshsales, SharpSpring, or HighLevel and who want a native connector rather than a Zapier bridge.
Who should choose Kanbox?
European solo operators, small sales teams, and boutique agencies who want LinkedIn prospecting, enrichment, and a visual pipeline in one affordable tool with data held on EU servers under GDPR, and who run moderate rather than aggressive volume.
What are the best alternatives to Dux-Soup and Kanbox?
SaaSTracker profiles 19 products in LinkedIn Outreach. The Summer 2026 awards in the category went to Expandi (Category Leader), Dripify (Best Value), HeyReach (Momentum). Every profile is compiled from primary sources, so a shortlist can be built from pricing, limitations, and fit rather than from star ratings.
