Prosyo vs Dux-Soup is the clearest example in this category of a browser extension versus a cloud platform. Dux-Soup is one of the original LinkedIn automation tools, running as a Chrome extension on your own machine at a low monthly price. Prosyo runs in the cloud on every plan, adds email in the same sequence, verified contact enrichment, buying intent and a reply inbox — and does not need your browser open.
That last point is the whole comparison. On Dux-Soup’s Pro and Turbo plans, automation pauses when you close the browser. If you want it running while your laptop is shut, you are on their Cloud plan at around $99 a month, which is five times Prosyo’s entry price.
Last verified September 2026. Vendors change pricing frequently — always confirm on the vendor’s own page before you buy.
Prosyo vs Dux-Soup: quick verdict
Choose Prosyo if you want campaigns that run with your laptop closed, LinkedIn that does not slow down while you work, email in the same sequence, verified contact data, and a reply inbox that plays voice notes — from $19 a month.
Choose Dux-Soup if you want the cheapest possible entry into LinkedIn automation, you are comfortable leaving Chrome open all day, and LinkedIn is your only channel.
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Current pricing
| Plan | Prosyo | Dux-Soup |
|---|---|---|
| Free | 7-day trial, no credit card, every core feature | Free tier with basic profile visiting |
| Entry | Starter $19 / month — cloud, browser can be closed | Pro around $14.99 / month — Chrome extension, browser must stay open |
| Mid tier | Multichannel $49 / month — LinkedIn and email in one sequence | Turbo around $55 / month — still extension-based |
| Runs without your browser | Included on every plan from $19 | Cloud plan around $99 / month |
| Contact data | Verified enrichment included — charged only on delivery | Not a data provider |
Compare like for like and the picture inverts. Dux-Soup looks cheaper at $14.99, but that plan stops when you close Chrome. The Dux-Soup plan that behaves like Prosyo’s $19 Starter costs around $99 — and reviewers describe that Cloud plan as unreliable.
Feature-by-feature comparison
| Area | Prosyo | Dux-Soup |
|---|---|---|
| Deployment | Cloud on every plan — browser and laptop can be closed | Chrome extension on Pro and Turbo; automation pauses when the browser closes |
| Effect on your LinkedIn | None — Prosyo does not run inside your LinkedIn tab | Reviewers report LinkedIn slowing by 5 to 10 seconds per page |
| LinkedIn automation | Profile visit, like, comment, connection request, LinkedIn message, email, delay, if/else and Intent conditions in one sequence | Profile visits, connection requests, messaging, endorsements and drip campaigns |
| Email in the same sequence | Yes — Gmail, Outlook or any SMTP/IMAP mailbox, from your own domain | Limited; not the core product model |
| Account safety controls | Safe by default, nothing to configure: human pacing, business hours only, no follow-ups after a reply, old invites cleared automatically | Throttling settings; independent testing reports elevated restriction rates in the first 90 days |
| Contact enrichment | Work email, direct dial, title, company and research notes, verified above 89% confidence. Nothing delivered, nothing charged | Not included |
| Buying intent | People publicly asking for what you sell, messaging you first, filling in a form, or hitting a funding or hiring moment — with a drafted first message | Not a product category |
| Voice notes in the inbox | Yes — LinkedIn voice notes play inline with their duration, images open full size | No |
| Unified reply inbox | LinkedIn and email in one thread list, replies sorted automatically, drafted answers and summaries, snooze, assign and stage changes | Replies handled in LinkedIn itself |
| Pipeline | Six stages from New to Customer, table and board views, HubSpot stage sync | Basic funnel tracking |
| Run it from ChatGPT or Claude | Yes — included free on every plan, covers LinkedIn, email and verified data, and nothing sends until you confirm | No official MCP; only through third-party bridges such as Zapier or Pipedream |
| Onboarding | One-click blueprints, or describe the campaign in a sentence | Reviewers describe the interface as illogical and unintuitive, with limited documentation |
Where Dux-Soup is genuinely strong
1. The lowest entry price in the category
At around $15 a month, Dux-Soup Pro is about as cheap as LinkedIn automation gets. For someone sending a handful of connection requests a week, that is hard to argue with.
2. A long track record
Dux-Soup has been around longer than most of this market and has a large installed base who know it well.
3. Simple to understand
Install the extension, open LinkedIn, set it running. There is very little conceptual overhead.
What Dux-Soup customers actually say
From published reviews and testing write-ups, the recurring issues are:
- Automation pauses whenever your browser is closed on the extension-based plans, which for most people means it only runs during the working day, on one machine.
- It slows LinkedIn down, with reports of 5 to 10 second delays when opening new pages.
- The Cloud plan is described as unreliable, with users needing to log into the server to troubleshoot it.
- Elevated restriction rates in the first 90 days reported in independent 2026 testing, with the extension-based approach able to trigger LinkedIn’s anti-automation systems.
- A steep learning curve, with the interface described as illogical and unintuitive and documentation described as limited.
- Team pricing that becomes steep for small businesses.
Source: Dux-Soup review and testing write-up. Verified September 2026.
Why the browser dependency matters more than it sounds
Three practical consequences follow from automation living inside your Chrome tab.
It only sends when you are at your desk. Sequences are supposed to run on a schedule across days. If the extension only fires while Chrome is open, your carefully timed follow-up goes out whenever you happen to be working, which is not the same thing.
Your LinkedIn gets slower. Five to ten seconds per page, on the site you are using for research all day, adds up to real time lost.
The pattern is more detectable. Activity clustered into your working hours, from your browser, at the pace an extension can manage, looks less like a person than randomised sending spread across your chosen hours from the cloud.
Prosyo runs server-side on every plan. You set daily caps and working hours, it spreads sending across them with a randomised 5 to 60 minute gap between actions, and your laptop can be shut the whole time.
Which is better for a solo user?
If you genuinely only want to visit profiles and send a few invites, Dux-Soup Pro is cheaper. If you want a sequence that runs whether or not you are working, with email, verified data and a reply inbox, Prosyo’s $19 Starter does more than Dux-Soup’s $99 Cloud plan.
Which is better for teams and agencies?
Prosyo. Extension-based automation is managed machine by machine, which does not scale across senders. Prosyo gives a seat per sender at $49, separate client workspaces, roles and permissions, and safety limits set on each account.
Switching from Dux-Soup to Prosyo
- Export your Dux-Soup data to CSV — the profiles you have collected and any tags you use.
- Import into Prosyo and map the columns, including custom fields you want as variables.
- Connect your LinkedIn seat and let Prosyo ease it in gently. Then uninstall the extension, so two tools are not acting on one account.
- Rebuild the drip campaign from a one-click blueprint, or describe it in a sentence and edit what Prosyo drafts.
- Close your browser. That is the part that will feel strange for the first day.
Prosyo vs Dux-Soup: final recommendation
Choose Dux-Soup if price is the only criterion, your volume is very low, and you do not mind leaving Chrome open.
Choose Prosyo if you want the campaign to run without you, LinkedIn to stay fast, email in the same sequence, and a reply inbox — for less than a fifth of what Dux-Soup charges for cloud sending alone.
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Frequently asked questions
Does Dux-Soup work when my computer is off?
Not on the Pro or Turbo plans. Those run as a Chrome extension and automation pauses whenever the browser is closed. Only the Cloud plan, at around $99 a month, runs continuously. Prosyo runs in the cloud on every plan, starting at $19.
Does Dux-Soup slow down LinkedIn?
Reviewers report delays of 5 to 10 seconds when opening new pages while the extension is active, because it operates inside the LinkedIn tab. Prosyo does not run inside your browser, so LinkedIn behaves normally.
Is Dux-Soup safe for LinkedIn?
Independent 2026 testing reports elevated restriction rates in the first 90 days, and the extension-based approach can trigger LinkedIn’s anti-automation systems. No tool can guarantee safety. Prosyo uses safe-by-default pacing, business hours only, no follow-ups after a reply, and old invites cleared automatically.
Is Prosyo a good Dux-Soup alternative?
Yes, especially if you have outgrown leaving Chrome open. Prosyo runs server-side from $19 a month and adds email in the same sequence, verified enrichment, Intent and a unified reply inbox.
Does Dux-Soup do email outreach?
Email is not the core Dux-Soup product model. Prosyo runs email steps in the same sequence as the LinkedIn steps, sending from your own Gmail, Outlook or SMTP/IMAP mailbox.
Does Prosyo have a free trial?
Yes — 7 days, no credit card, one LinkedIn account, one mailbox, 25 AI credits and every core feature.
Can I run Prosyo from ChatGPT or Claude?
Yes, through MCP — included free on every plan, using no Prosyo credits, and confirming before anything sends.
