How do I activate Pro?+
Open the Polar customer portal using your checkout email and copy your Pro key. Sign in with Google at /account, paste the key and select “Activate Pro”. Add up to three websites if you want Pro embeds; website addresses are optional for clean exports and the AI connector. See the Pro guide for setup steps.
What does Free include?+
Use every maker and chart type. Free embeds keep the “Made with Meiku Charts” credit, and PNG and SVG exports carry a meikucharts.com mark. AI connector includes 10 visualizations/month and up to 1,000 points per chart.
What changes with Pro?+
Publish with your own credit line, or no credit. Download clean PNG and SVG exports and get 500 AI connector visualizations/month, with up to 5,000 points per cloud render. Pro includes local MCP access and covers up to 3 websites, including their subdomains.
How does billing work?+
Pro is $19 billed monthly or $190 billed yearly. It renews automatically until you cancel in the Polar customer portal. Polar is the reseller and Merchant of Record.
What happens if I cancel?+
Paid features remain available until the end of your paid period. After that, Free conditions apply, including the required credit and export marks; embeds may take up to a few days to return to Free while cached license checks expire. Deleting your Meiku Charts account does not cancel your Polar subscription.
What are the AI connector limits?+
Free includes 10 visualizations/month, Pro 500 and Team 5,000. Charts and tables share one allowance, which resets on the 1st of each month (UTC). Cloud charts support up to 1,000 points on Free and 5,000 on Pro. Only successful results count, with a warning at 80%. Hosted services also have fair-use limits. We give advance notice before changing free hosted-service limits.
What does Team include?+
Contact us to discuss Team.
How do I get the local MCP server?+
Local MCP is included with Pro. Download it from your account after you activate your Pro key. Up to 3 computers can use it, with up to 7 days offline after a successful check. PNG rendering uses your installed Chrome or Edge. See MCP setup for details.
Who handles payment, tax and refunds?+
Polar is the reseller and Merchant of Record. It processes payment, calculates, collects and remits tax, and issues your receipt. Prices in US dollars. Tax is calculated at checkout: included in the price in most countries, added at checkout in the US, Canada and India. Refunds follow Polar’s checkout buyer terms, including any applicable statutory rights. See our Terms of Service.
Can I put the engine in my own product?+
Embedding charts on your own sites is covered by the plan conditions. Integrating the engine into a product for your customers requires an OEM license. Contact us about OEM.