Are cookies a requirement?

Hello I have a question do I need to add Cookies to my web app? I mean is it a requirement? If so, how can I add it?

No they’re not a “requirement”.
You decide if your app needs cookies for functioning as you want.
Do you need to track users’ behavior or online ads?
IF(response.question=true, true, false)
And anyway: Google to Ban Third-Party Cookies: 5 Things You Should Know

Thank you and yeah I need them for online ads
How can I set it up?

Search the forum.
It is extremely difficult for non experts like us.
It will be made possible when AppGyver enables third party plugins.