There aren't enough hours in the day to sit in on internal and client meetings, respond to emails, keep up with product changes and run reports.
The Customer Health Monitor for B2B SaaS Teams
Churn Assassin runs autonomously in the background, helping teams get ahead of churn and uncover upsell opportunities
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As a Founder...
Hi, I’m Brian Polackoff and back in 2009, I founded VAIRKKO, a B2B SaaS company that I later sold in 2022. During those years, churn was always on my mind— losing clients over issues that could’ve been prevented if me and my team had known ahead of time. It was painful, frustrating and I took it personally, very personally.
I tried everything. Improved the product, built internal tools, improved processes, hired more Customer Success Managers. Bought three different customer success platforms. Spent a fortune. But churn kept creeping up. Another bloated, overpriced platform wasn’t the answer—I needed clear visibility into customer health and early churn signals. So I built Churn Assassin.
Up and running in minutes, Churn Assassin is your plug-and-play customer health monitoring agent. Powered by AI, data science, and machine learning, it continuously re-evaluates account health and sends real-time alerts whenever a customer needs intervention—or even when there’s a sales opportunity for expansion. No guesswork. No surprises. No last-minute rescue missions. Your team gets actionable insights to step in and support customers at the right time, every time.
Results that Surprised Even Us...
40%Better Customer Retention and Renewal Rates
With 40% better customer retention and renewal rates, Churn Assassin acts as your dedicated account health monitor, powered by AI and machine learning. By providing real-time alerts and actionable insights, your team can intervene early to prevent churn and seize opportunities for expansion. No guesswork—just smarter monitoring that drives predictable growth.
98%Reduction in Time Spent Identifying At-Risk Accounts
With a 98% reduction in time spent identifying at-risk accounts, Churn Assassin eliminates the manual guesswork. Real-time alerts and automated insights prioritize where your team’s attention is needed most, freeing them to focus on meaningful client engagement and retention strategies. Stay proactive without the extra effort.
65%Increase in Time Spent Engaging with Clients
65% Increase in Time Spent Engaging with Clients – Churn Assassin automates account health monitoring, giving your team more time to build relationships and deliver value to customers. Focus on what matters most—driving retention and strengthening client partnerships.
Sound Familiar?
Finding those customers who are likely to cancel is like finding the needle in the haystack. There has to be a better way.
Getting ahead of churn and revenue expansion opportunities is more than a full-time job with the amount of clients we have today.
Customer Retention Software That Works
This isn’t just another heavy, expensive customer success platform that collects dust. It’s your fully autonomous customer health monitor, running quietly in the background—relentlessly watching your accounts, ensuring stability, and driving predictable revenue growth through retention and expansion.


It's Time To Take Back Control of Customer Health
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Modern Tech. Prioritized Efforts.
More clarity. Less guesswork. Better retention.
Your customers send signals every day. Some are thriving, some are slipping away, and some are about to churn. But without the right visibility, you’re stuck reacting instead of preventing.Churn Assassin changes that. Our AI, machine learning, and data science decode customer behavior in real time, telling you exactly where to focus your efforts.
- Know who’s at risk—before it’s too late.
- Spot downward trends early and act fast.
- Focus on customers who need attention, not just noise.
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Focused Features. Immediate Value.
Customer Success Should Be Simple.
By know you've found traditional customer success platforms are bloated, overpriced, and stuck in the past. They overload you with unnecessary features and cost. Churn Assassin is different.
We deliver what you actually need, focused, powerful tools to:
- See customer health instantly—no more blind spots.
- Use automation & AI to drive engagement and communication.
- Retain customers without hiring more staff.
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Stay Lean. Get Results.
Retention That Works Without Wasting Your Time or Money.
Most platforms take 12-20 months to deliver value. Some even require specialist hires just to keep them running. They just aren't focused on lean, fast-moving SaaS companies, but Churn Assassin is.
- Installs in minutes.
- Works with the tech stack you already use.
- Automates retention—so you don’t have to.
Why B2B SaaS Companies Turn To Us
Maintaining Control with Less Wasted Time: Get clear insights on churn, retention, and customer health—all in one place.
Maintaining Control with Less Wasted Time: Get clear insights on churn, retention, and customer health—all in one place.

Let Tech Do the Work, So You Can Take Action: No more guessing. You'll know exactly which clients need attention and why.
Let Tech Do the Work, So You Can Take Action: No more guessing. You'll know exactly which clients need attention and why.

Keep More Customers, Grow More Revenue: Retain users, increase renewals, and add expansion revenue—without extra effort.
Keep More Customers, Grow More Revenue: Retain users, increase renewals, and add expansion revenue—without extra effort.


No Bloat, Just Results: Unlike bulky platforms that take months to set up, Churn Assassin is lean, fast, and focused.
No Bloat, Just Results: Unlike bulky platforms that take months to set up, Churn Assassin is lean, fast, and focused.


Your Drop-in, Plug-and-Play Customer Health Monitor
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Set Up in 2-Minutes: Copy and paste a code snippet into your app. No complex onboarding or setup. That's it.
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AI/ML-Powered: Automatically detects patterns that separate happy customers from at-risk ones.
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300+ Churn Signals, 5 Advanced Models: Machine learning analyzes real user behavior for unmatched accuracy.
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Actionable Insights, Fast: See real-time usage data within minutes and churn behaviors within days—so you can act early.
Not Just Another Crappy Health Score
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See Churn Before It Happens: Identify at-risk customers 3-8 months in advance.
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Go Beyond Basic Metrics: Tracks over 300 behavioral signals to uncover true churn risks—not just login or product usage metrics.
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Pinpoint High-Risk Accounts: Know exactly which customers need attention so you can act before they leave.
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Continuously Learns & Improves: Churn Assassin refines it's churn predictions and upselling signals over time, making insights even more accurate.
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Engage Smarter. Communicate better.
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Personalized, Contextual Messaging: Deliver targeted messages including product announcements, upgrades, and more directly inside your app based on user behavior, activity, or milestones.
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Customizable Look & Feel: Match the in-app experience to your brand by adjusting icons, placement, and colors.
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No-Code Content Management: Instantly update the Customer Panel with FAQs, videos, surveys, and other resources—no developers needed.
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Audience Segmentation & Targeting: Show the right content to the right users based on role, behavior, or account status.
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Track Engagement & Performance: See who interacts with your content so you can refine your approach and drive better results.
Plays Well With Others
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Automated
Reports and Insights
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Save Time with Automation: Machine learning handles the analysis so you can focus on strategic actions.
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Reduce Stress with Clarity: Know exactly where to act without constantly monitoring dashboards and running endless reports.
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Streamlined Reporting: Get pre-formatted reports to showcase value to stakeholders or export data for deeper analysis.
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Identify Churn Early: Stay ahead of customer churn with accurate, data-driven insights and forecasts.
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Focus on What Matters: Spend less time crunching numbers and more time strengthening customer relationships.
Free Trial. Free Tier. Transparent Pricing.
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Try Before You Buy: Get a 30-day free trial with full access—no credit card required.
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Free Forever Option: Keep using Churn Assassin for up to 25 monitored customers at no cost.
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No Hidden Fees: Clear, transparent pricing based on the number of monitored companies with no surprises.
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Seamless Transition: Your data stays intact when moving from Free to Pro, so you never lose insights.
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Your Data Stays Yours: No matter which plan you’re on, we never sell, share, or use your data for AI training.
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Frequently Asked Questions
Here you can find some of the most common questions we receive.
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How much does Churn Assassin cost?
Churn Assassin is an affordable solution for B2B SaaS companies. To see our current pricing head on over to our pricing page by clicking on the link below:
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What can I expect after signing up?
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First; you will login to your portal to copy your code snippet or email the code snippet to your developers to complete the 2-minute install.
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Then paste your code snippet just before the closing </body> tag of your application.
It will only take a few seconds for data to begin to flowing into Churn Assassin once your code snippet is installed. However, it will likely take a few days before enough data is collected for you to begin to receive actionable data as it does take our systems time to learn your app and your users. The more data Churn Assassin has, the better it performs.
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What does the data report look like?
You will receive daily and weekly email reports with a list of clients showing churn signals and revenue expansion opportunities.Here’s a sample reports: -
How do I know if it will work for me?
We've trained our five different machine learning algorithms on over 234,000 B2B SaaS users across +800 SaaS businesses. Churn Assassin does not work for B2C SaaS companies. If you're a B2B SaaS with, then Churn Assassin is the right tool for you. No guesswork. No surprises. No last-minute rescue missions. Your team gets actionable insights to step in and support customers at the right time, every time.
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What do I do with the data?
Early intervention is the key to saving a high-risk churn customers as well as upselling an account. Once you receive alerts from Churn Assassin you'll know which customers to prioritize for actions that help you retain or upsell them.
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After implementing, what will my churn rate be?
Our clients are able to reduce churn by up to 38% - helping to reduce B2B SaaS churn, grow net revenue retention (nrr) and increase customer lifetime value (clv) along with customer loyalty. -
I have other questions...
If you have other questions you can check out our full FAQ page or contact us anytime. We're here and happy to help!
Decisions, Decisions..
You’ve got a decision to make. Are you the hands-on, get-it-done type who prefers to dive right in? If so, start your free trial (no credit card needed) and see Churn Assassin in action today. Or maybe you’d rather take the guided tour, ask questions, and see how it all works firsthand? In that case, schedule a demo, and we’ll walk you through everything. Either way, the choice is yours—let’s get started.