i want to create an app in which if user signup first time (by storing IMEI in Firebase) then user will get reward of X coins , if user clear data of our app or uninstall and reinstalled our app and signed up again then he will not get reward !
So,What do you need for help?
Maybe this can help you to give more information.
watch this video https://youtu.be/MQrZAicCBaM
#7 Star Media
hmm. i think device imei’s very easily replaceable
this is not a safe method
- Have A Look Of This Video
And why do you want to store every users’ IME? Use IP address instead.