Churn Tool Stack by Revenue Stage ($5K to $50K+)

TL;DR: Most founders over-buy churn tools before they have a retention review habit. The stack that matters most is the one you actually use weekly. At $5K to $10K MRR, prioritize revenue clarity and cancellation reasons over sophisticated platforms. Free or freemium analytics plus Stripe cancellation tags cost nothing and reveal 80% of your churn drivers. At $10K to $25K, move to a revenue-focused tool like Baremetrics or ChartMogul, paired with cancellation insight capture. At $25K to $50K, standardize on one revenue source of truth, one churn-reason workflow, and one behavior analytics layer. At $50K+, build a dedicated retention operating system with workflows for cancellation flows, dunning, lifecycle emails, and health scoring.

RetentionCheck has reviewed 50+ indie SaaS founders' tool stacks at different revenue stages. The pattern is consistent: founders at $10K MRR running five tools are drowning in data they don't have time to interpret. Founders at $50K MRR with three-tool stacks moving weekly are shipping retention wins faster than founders at $100K MRR with enterprise platforms they don't fully use.

The stack you pick matters less than the weekly retention review habit you build around it. This guide is sorted by revenue stage, not by what's coolest to demo. Follow the recommendations for your current MRR and ignore the rest.

$5K to $10K MRR: Start with Free or Free Tier

At this stage, churn dollars are not yet large enough to justify dedicated tools. Your bottleneck is clarity, not measurement. You need to know:

What is your true MRR and month-over-month growth?
Why do people cancel (one sentence per cancellation)?
Which product behaviors correlate with longer retention?

Recommended stack: ChartMogul Free or ProfitWell Metrics + Stripe cancellation reasons (custom field, no tool) + PostHog Free

ChartMogul Free tier: MRR, growth rate, churn rate, paid plans visibility. 50K events/month, no automation. Cost: $0.
ProfitWell Metrics (free): Similar to ChartMogul. Auto-syncs Stripe/Paddle/Braintree. Cost: $0.
Stripe cancellation tag system: Reason, cost, context. Create custom fields on Stripe coupon codes or via subscriptions API. Tag every cancellation in real time. Cost: $0 (you already use Stripe).
PostHog Free tier: Product behavior (feature adoption, navigation flow). 1M events/month, no behavioral targeting. Cost: $0.

Why not: Gainsight, Vitally, Churnkey, Userflow. These are revenue-first, not clarity-first. They're built for CS teams with $100K+ ARPU. At $5K MRR with no CS hire yet, you'll churn the tool before it pays back. Save $500+ per month for hiring, product, or marketing.

Retention review cadence: Weekly 30-minute call with co-founder or advisor. Pull MRR from ChartMogul, pull cancellations from Stripe, skim PostHog for one surprising behavior signal. Act on one of the top three cancellation reasons that quarter. If you can't do this, the stack is too complex.

$10K to $25K MRR: Add Revenue Tool + Cancellation Insight Capture

Now churn dollars are meaningful. A one-point churn rate change = $500 to $1000 MRR impact. Your weekly review becomes an operating habit, not a monthly audit.

Recommended stack: Baremetrics or ChartMogul + ChartMogul Cancellation Insights or Churnkey lightweight + PostHog or Mixpanel

Baremetrics: $99/mo. Auto-syncs Stripe, Paddle, Braintree. Forecasting, unit economics, cohort retention, instant alerts when churn spikes. This is the default move for single-founder SaaS. Cost: $99/mo.
ChartMogul: $249/mo (entry). Metrics + forecasting, custom dashboards, API-first design. More flexible than Baremetrics if you have complex billing logic. Cost: $249/mo.
ChartMogul Cancellation Insights: Lightweight capture inside ChartMogul. Replaces Stripe tags, feeds dashboard. Easier than manual tagging. Cost: Add ~$100/mo if Baremetrics route.
Churnkey lightweight: Cancel-flow automation only. Structured cancellation survey then post to Slack weekly. Cost: $150/mo for small plans.
PostHog or Mixpanel: Free tiers 1M to 3M events/mo. PostHog self-hosted is cheaper if you're comfortable with infra. Mixpanel is easier cloud SaaS. Cost: $0 to $300/mo.

Why not: Enterprise CS platforms (Gainsight, Vitally, Totango). Not yet. You don't have a CS team. A solo founder or a single CSM can't justify $2K+ per month. Scale to $25K MRR first, then revisit.

Retention review cadence: Weekly 45-minute call. Baremetrics dashboard is your data source. Review: MRR, net revenue retention, churn rate, top three cancellation reasons, product behavior anomalies, action items from last week. One action per week (e.g., "email 3-day inactivity users about the feature they missed").

$25K to $50K MRR: Standardize on Three Points

You've likely hired a CSM or are hiring soon. Churn is now your biggest revenue leak (worth $10K to $25K per point). Your tools should drive repeatable behavior change, not just reporting.

Recommended stack: Baremetrics with Cancellation Insights + Churnkey or Churn Buster + PostHog with event capture

Baremetrics + Cancellation Insights: $99 + $100/mo. One revenue source of truth. Alerts on churn rate changes. Historical cohort retention. Cost: $199/mo.
Churnkey: $500 to $1000/mo (depending on plan volume). Cancel-flow automation, dunning recovery, save offer logic, Slack integration. Recovers 10-15% of at-risk cancellations. Cost: $500 to $1000/mo.
Churn Buster: $400 to $800/mo. Lightweight alternative to Churnkey if you want save-offer copy templates and A/B testing without the full cancel flow suite. Cost: $400 to $800/mo.
PostHog with custom events: Track feature adoption, session depth, account health signals. Build dashboards for "accounts at risk by usage pattern." Cost: $300 to $500/mo self-hosted or ~$600/mo SaaS.

Why not add: Userflow, Appcues, Pendo for in-app onboarding. You may be tempted because churn is high. These solve onboarding, not churn. Unless your onboarding completion rate is below 40%, use your team's time to fix cancellation workflows first, then revisit onboarding tooling.

Retention review cadence: Weekly 60-minute meeting. CSM + founder + one product person. Baremetrics for MRR, Churnkey dashboard for cancel-flow conversion, PostHog for cohort behavior, one prioritized action per account cohort (e.g., "Email accounts at risk by login frequency drop > 70%").

$50K+ MRR: Build a Dedicated Retention Operating System

At this stage, every churn point is expensive. Prevent cancellations at every touch.

Recommended stack: Dedicated retention workflow: cancel-flow automation + dunning system + lifecycle email builder + health scoring

Churnkey or Recurly Dunning + Lifecycle Email: Cancel flow + payment failure recovery + lifecycle email send. Cost: $800 to $2000/mo.
Health scoring system: In-house (via PostHog, Amplitude, or custom SQL) or platform like Gainsight (if ACV supports it). Proactive outreach to at-risk accounts. Cost: $500 to $5000/mo depending on complexity and tooling choice.
Advanced analytics layer: Amplitude, Mixpanel, or in-house DBT + dbt-core on Postgres. Predictive cohort modeling, segment-by-hazard-rate analysis. Cost: $500 to $2000/mo.
Optional: CS platform: Gainsight, Vitally, Totango if you have 3+ CSMs. These are CS operating systems, not churn tools. Cost: $2000 to $5000/mo.

Why not spreadsheets: At $50K+ MRR, churn is your biggest P&L lever. Every percentage point of churn rate = $5000+/mo at risk. Spreadsheet-based workflows slow down your ability to respond and scale. Invest in automation.

Retention review cadence: Daily standup: check health score alerts, review yesterday's dunning outcomes, scan new cancellations for patterns. Weekly business review: cohort retention trends, LTV by acquisition channel, predicted churn for next 30 days, resource allocation for retention initiatives.

The Operator Notes: Buy Decision Framework

These four rules matter more than the tool list:

Do not stack five tools before you have a weekly retention review habit. The stack matters less than using the data. One revenue tool + one reason-capture method + one behavior layer is enough for $25K MRR. Three is the practical max for a solo founder.
For indie Stripe SaaS, prioritize this order: revenue truth (Baremetrics), cancellation reasons (Stripe tags or Churnkey), product behavior (PostHog), then intervention workflows (Churnkey/Churn Buster). Skip interventions until you understand the reasons.
Gainsight-style CS platforms are a later-stage operating system, not a churn fix for a no-CS-team business. You don't have the staff to fill them. Buying at $10K MRR is waste. Wait until you have 2+ CSMs and $100K+ ARPU.
Positioning gap: most tools either show revenue metrics or run cancel flows. Few turn cancellation text into a weekly operator brief with one action. This is what we built RetentionCheck for. The tools above handle metrics and flows; RetentionCheck converts them into one-sentence decisions every week.

Why RetentionCheck Fits Here

Most churn tools give you three things: revenue dashboard, cancellation automation, product analytics. RetentionCheck adds the fourth: weekly operator brief with one action.

Instead of "You have 47 cancellations this week. Read them all and pick a priority," RetentionCheck tells you "Top reason this week: pricing objection (12 accounts, $2400). Action: Send [customer name] this message by Thursday." No multi-tool context switching. No reading 47 cancellation surveys. One dashboard, one decision per week.

This is why RetentionCheck is positioned below the revenue tools (Baremetrics, ChartMogul) in your stack. It consumes their data and turns it into action. It sits on top of Stripe, your cancellation reasons, and optionally Churnkey. You keep Baremetrics for forecasting and unit economics. You keep Churnkey for save-offer automation. RetentionCheck handles the weekly review.