SaaS Analytics: Mixpanel, Amplitude, PostHog, Event Tracking, and Funnel Analysis
Page views and visitor counts tell you nothing about your SaaS product. You need event-based analytics that tracks what users actually do. Here is how to choose and implement product analytics for your SaaS.
What Product Analytics Solves
Traditional web analytics shows you where users come from and what pages they visit. Product analytics shows you what users do inside your application. Which features do they use? Where do they get stuck? Which actions predict retention?
Without product analytics, you make product decisions based on anecdotes from loud customers. With it, you can A/B test changes, measure feature adoption, and identify friction points in your onboarding flow.
Mixpanel: Mature and Comprehensive
Mixpanel has been the market leader in product analytics for years. It offers event tracking, funnel analysis, retention cohorts, and predictive analytics. Its query interface is powerful but has a learning curve.
Mixpanel pricing is based on the volume of tracked events. The free tier allows 20 million events per month, which is generous for early-stage products. Paid plans start around $25 per month.
Mixpanel excels at retention analysis. You can create cohort tables that show what percentage of users return in week two, month two, or month six. This is the single most important report for a SaaS product. If retention is flat or declining, nothing else matters.
Amplitude: Behavioral Analytics Leader
Amplitude is similar to Mixpanel but emphasizes behavioral analytics and user segmentation. Its behavioral cohorts let you group users by actions, then analyze how those groups behave differently.
Amplitude's path analysis shows the sequences users follow through your product. You can see the most common paths to activation, or identify paths that lead to churn.
Pricing is similar to Mixpanel, with a generous free tier and usage-based paid plans. Amplitude tends to be more expensive at scale, so evaluate costs carefully if you have millions of users.
PostHog: Open-Source Alternative
PostHog is the open-source product analytics platform. You can self-host it, which means you own all your data and do not need to send user behavior to third parties. This matters for privacy-conscious products and B2B SaaS with data security requirements.
PostHog includes event tracking, session recording, feature flags, and A/B testing. Having feature flags integrated with analytics is powerful: you can roll out features to specific segments and measure impact in one platform.
Self-hosting PostHog requires infrastructure management. The cloud-hosted version starts free and scales with usage. PostHog is generally cheaper than Mixpanel or Amplitude at scale.
Event Tracking Best Practices
Good analytics starts with good event tracking. Define a consistent naming convention before you write any code. Use `object_action` format: `project_created`, `invoice_paid`, `team_invited`. Avoid ambiguous names like `clicked_button`.
Track these events in every SaaS product: signup, onboarding step completion, first key action, feature used, upgrade, downgrade, cancel, and payment failure. These are the minimum events for understanding your funnel.
Use properties to enrich events. A `project_created` event should include properties like template_used, team_size, and project_type. Properties make events analyzable across dimensions.
Funnel Analysis
Funnels show conversion rates between sequential steps. The classic SaaS funnel is: visit landing page, sign up, complete onboarding, perform key action, invite team member, upgrade to paid.
Analyze each step drop-off. A 90% drop from landing page to signup means your value proposition is unclear or your signup form is too long. A 50% drop during onboarding means the setup process is too complex.
Fix one step at a time. Run an A/B test on the page with the highest drop-off. Measure improvement before moving to the next step. Incremental improvements compound: five 10% improvements yield a 61% overall improvement.
Choose the tool that fits your budget and privacy requirements. Start with PostHog if you want control and lower cost. Choose Mixpanel for deep retention analysis. Pick Amplitude for behavioral segmentation. The best tool is the one you consistently use.