Does Wi-Fi count towards my data usage?

I'm getting an iPhone (my first smart phone) soon and I wanted to know if I used Wi-Fi if it counted towards my data usage.

No it does not.

Wi-Fi is not applied toward your data because some1 else is paying for it like if your home an using Wi-Fi its your utility bill so why pay for it twice right. Data is when you are using the companys internet. So its only charged when when you are on the 4g.

No it doesn't. It doesn't waste you data usage quickly if you use Wi-Fi.

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