This is a general question but i was not able to get the answer for it. Highcharts (https://www.highcharts.com/) is a paid library and it is clearly mentioned in documentation that i need to buy it but what about https://www.npmjs.com/package/angular2-highcharts ? Is this a paid library? I tried to check their licence : It states MIT licence. Does MIT licence means i can use that library for commercial purpose ? I have asked few people and got mixed response.
Hope this might help. I was going through charts to use in the app I was working on.
Answer is a Yes, highchart is paid unless you're using it for Non-Commercial use.
Regarding the angular2-highcharts Module, the same thing applies. It's just a wrapper for the angular platform using highchart.js
As a conclusion, if you're using the angular module, you have to go for a highchart.js paid plan if that's a commercial app. You can use the angular2-highcharts for free
Did you try out ng2-charts? I am using it and quite enough for the need