Hello. 
We have a problem, font size doesn’t look like same size. (between Figma and real app.)
All OS have this problem and we don’t know why this problem happen.
Usually, real app’s font size is smaller than Figma font size.
Add screenshot for asking, and please help us 
I checked this page, but My Figma app interface’s scale is default(100%).
Hi there,
Thanks for reaching out! I’m checking with my internal team. I will get back to you if I have any update that I can share with you.
Thanks,
Toku
@chloe.k11 very sorry for keeping you wait long. As I checked with our internal team, could you reach out directly to the support team with a copy of your file: https://help.figma.com/hc/en-us/requests/new? They hope to directly check about this issue with the file information.
Please make sure you use the email associated with your Figma account, include links to the file in question, desktop app or mobile app, and share access with support-share@figma.com. Don’t worry, inviting us to view your file won’t impact your billing.
Thanks for your understanding!
Toku
