Baremetrics scales its tiers with tracked MRR and sells dunning recovery and cancellation insights as separate add-ons, so the bill grows in step with the revenue being measured. ProfitWell's free Metrics tier avoids that fee, but its churn and reactivation logic lives inside Paddle's hosted dashboard where you cannot inspect or change it. Tidemill's same-database mode reads Lago's or Kill Bill's PostgreSQL tables directly with no Kafka or ETL, and its MRR waterfall, cohort retention, and NRR queries are open SQL you can audit and modify. For Stripe-only stacks, stripe-pulse returns MRR, churn, and quick ratio in one CLI call with no local database, while Kill Bill's Apache-2.0 analytics plugin generates MRR, churn, and LTV reports inside your own billing database.
| Name | Main Category | Sub-Category | Target Alternative | Free Tier Summary | Self-Hostable? | Short Description | Primary Link |
|---|---|---|---|---|---|---|---|
Kill Bill | Product Analytics & Monitoring | Subscription Billing & Revenue Reporting | Baremetrics / Chargebee / Recurly | 100% Free - Apache 2.0 (Self-Hosted) | Yes - Docker | Programmable subscription billing and payments engine with a plugin framework and the Kaui admin UI. Its Apache-2.0 analytics plugin generates MRR, churn, and LTV reports from your own invoice data. | |
Tidemill | Product Analytics & Monitoring | Subscription Analytics Engine | Baremetrics / ChartMogul / ProfitWell Metrics | 100% Free - MIT License (Self-Hosted) | Yes - Docker | Computes MRR, ARR, churn, cohort retention, NRR, LTV, and trial conversion from Stripe webhooks or directly from Lago and Kill Bill PostgreSQL tables. Exposes metrics through a FastAPI REST API, a CLI, and a notebook-ready query layer. | |
Stripe-pulse | Product Analytics & Monitoring | Stripe Metrics CLI | Baremetrics / ChartMogul / ProfitWell Metrics | 100% Free - MIT License (Local CLI) | Yes - Binary | Node.js CLI that calculates MRR, ARR, churn, LTV, NRR, quick ratio, and MRR movements directly from the Stripe API with no database. Outputs JSON, CSV, or Markdown, and its README recommends it for fewer than roughly 10,000 subscriptions. | |
Lago | Product Analytics & Monitoring | Usage-Based Billing & Metering | Baremetrics / Chargebee / Stripe Billing | Open Core - AGPL-3.0 (Self-Hosted); built-in MRR analytics module is Premium | Yes - Docker | API-first billing engine for subscriptions, usage metering, and invoicing with Docker and Helm deployment. The core is AGPL-3.0, but the built-in MRR dashboard needs a Premium license, so pair it with Tidemill for free MRR and churn. | |
PostHog | Product Analytics & Monitoring | Product Analytics, Session Replay, Feature Flags & Revenue Insights | Mixpanel / Amplitude / LaunchDarkly / Hotjar / FullStory / Baremetrics | 100% Free - Self-Hosted (MIT License Core, open-source hobby deploy; ~100K events/mo recommended scale) | Yes - Docker | All-in-one MIT-licensed suite combining product analytics (funnels, paths), session replay with console/network capture, click/scroll heatmaps, feature flags, and revenue analytics on a ClickHouse event store. Syncs Stripe billing data into its data warehouse to correlate MRR, churn, and user retention against in-app actions on a self-hosted Docker deployment (4 GB RAM minimum). |
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