1: The Basic customization cost will be $19, And if you want to activate live chat in the app then you have to pay $10 extra.
That means the total will be $29.
2:The time will depend upon you. If you send the document and all the required details then I have built the app quickly.
3:No Just upload the course on the site, It will redirect in the app.
4:work firstly means?
For the Zoom meeting follow this step: https://bit.ly/38w5GLd