Yes,I can use the Firebase Sign in component to let me to do a register and sign in system.It can be save the data with stored.
I don’t know whether did someone who had been asked.
The stored variable is just save the data in the own device,even if there is the device is also sign in the firebase account,the data is not same as the original one.
Example,they are using same account
Device A got Level 3
Device B just has been started to be Level 1
How to let Device B also can be tracked to be Level 3 when using same account?
Thanks and I am grateful if you are able to solve my problem