Does Firebase has Read/Write limit?

Hi I just create an app which has coins system & login system through Firebase.
I am using free plan of Firebase I know free Realtime Firebase has limit of 1GB but does it also have any limit to read or write data?
Because in my app almost after every second or minute I will read or write data from Firebase?
Because I have seen on some website is shows 50K read & 20K writes a day
And if there is any limit of read/write then I will try to read write data as low as possible

Check the firebase website for the most accurate and up to date information.

The limitation of 50k read and 20k writes on the free plan is for the Cloud Firestore Database, not RealtimeDB