ChurnLens vs GrowPanel

ChurnLens is a self-hosted SaaS metrics tool for calculating MRR, churn, and LTV from Stripe or CSV data. Its full report includes current MRR, ARR run-rate, active customers, average customer churn, and monthly figures such as net-new MRR and LTV. The `mrr` command breaks the latest month’s MRR movement into new, expansion, reactivation, contraction, and churned amounts. Reports can return JSON and use a chosen currency label, with USD as the default.

ChurnLens can recompute metrics from ledger updates and publish JSON to a BI or dashboard pipeline. It also lists SARIF output for code scanning, an MCP server for AI agents, and webhook forwarding for SIEM, Slack, and Jira. The README describes use through MCP, JSON piped into agents or LLMs, or CI with exit codes and SARIF. Installation options include pip, pipx, uv, Docker, Homebrew, and a shell script. It requires no account. The source-available license permits personal, internal evaluation, research, and educational use; commercial or production use requires a separate license. Pricing is on request.

GrowPanel provides subscription analytics for SaaS businesses through web and API access. It reports real-time MRR, ARR, LTV, churn, and customer lifetime metrics, alongside recurring and one-time revenue, refunds, discounts, fees, taxes, and foreign exchange. Forecasts cover MRR and cashflow. Cohort analysis, trial tracking, conversion rates, retention trends, and cancellation comments help teams examine customer behavior. Billing data connections include Stripe, Chargebee, Recurly, Alunta, Google Sheets, and a custom API; other listed integrations include HubSpot, Slack, Microsoft Teams, n8n, Make, Zapier, webhooks, and Google Data Studio. GrowPanel AI answers questions about account data and can propose actions for approval. An MCP server connects compatible AI assistants to GrowPanel data. Billing connections have read-only access and cannot create or modify subscriptions or charge customers. The service offers a free plan and a 14-day trial. Paid plans start at $49/mo billed annually. GrowPanel says persistent customer data is stored in the EU and account data is deleted from production systems within 30 days after account deletion.