So my phone is cracked and the 1 year warranty at apple is going to fix it for me and I was just wondering if I needed to bring any money to like pay for it or like is it going to be free?

If the crack is due to manufactoring defect (only Apple specialists can diagnose that), the damage is covered by 1 year warranty.

If the crack came out after an accidental event, you need to pay for the replacement.

Just to give you an idea, this is the price list in US.

iPhone Screen Repair & Replacement - Official Apple Support

Please, check the prices in your country, contacting your most convenient Apple Store or Authorized service provider among this list: Apple - Find Locations - Location Selector

Regards

Giulio

Accidental damage like a cracked screen is not covered under warranty. There is a charge to replace it.

See this page for pricing: iPhone Service Pricing - Apple Support