Chartsy vs OpenMogul

Chartsy is a web analytics product for SaaS founders that combines Stripe and Paddle billing records with website traffic. It calculates MRR, ARR, churn, LTV and cohort retention from invoice data, and includes expansion analysis and unit-economics measures. A tracking script attributes visits and signups to Stripe or Paddle revenue by marketing channel. ChartsyAI converts plain-English questions into charts without SQL; its chatbot handles follow-up questions and explains changes in revenue metrics. Supported sources are Stripe, Paddle Billing, Paddle Classic and BigCommerce. GDPR Mode avoids storing customer names and email addresses while metrics continue to work. Connections to Stripe and Paddle are read-only except for webhook registration. Weekly emails cover subscribers, MRR, churn, plan performance and geographic distribution. Four dashboard templates appear after initial synchronization. MCP supplies read-only data to ChatGPT and Claude.

OpenMogul provides subscription analytics for SaaS businesses, including monthly and annual recurring revenue, churn, and customer lifetime value. It tracks new business, expansions, contractions, and churn in real time, presenting results in a visual dashboard with interactive charts and graphs. OpenMogul is described as fully self-hosted: data stays on the user's servers and can be exported at any time. It is also available as a web product and API. The REST API covers data sources, customers, plans, subscriptions, invoices, metrics, activities, and a health-check endpoint. Requests use HTTP Basic Auth with an API key. The site describes the API as compatible with ChartMogul and says existing integrations can work after changing the base URL; Stripe is given as an example data source. OpenMogul is open source under the MIT License. Its Free plan is listed at free, with no per-seat charges or usage limits, and the site says there are no hidden fees. Documentation, a community, and contact information are linked for support.