Can CesiumJS work without Cesium Ion??

1. A concise explanation of the problem you’re experiencing.

I want to confirm if CesiumJS can work without Cesium Ion. Is Cesium Ion a paid platform or free? If CesiumJs can not work standalone and need Cesium Ion then do we have other alternatives as Cesium Ion is a paid service

2. A minimal code example. If you’ve found a bug, this helps us reproduce and repair it.

3. Context. Why do you need to do this? We might know a better way to accomplish your goal.

4. The Cesium version you’re using, your operating system and browser.

Answered here: