What does it mean when a girl from tinder ask for yours snap?

So me and this girl matched and told eachother about ourselves then she asked me what am I looking for on tinder. I said dating she said she is too and apologizing for being to forward and didn’t want to waist anyone’s time and I’m like it’s ok i know where your getting at. Then she asked if I have a snap and I said yea and she asked for my snap name and I gave it to her and we added eachother so we continued our conversation. Why did she ask for my snap anyway
What does it mean when a girl from tinder ask for yours snap?
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