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?
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Maybe this can help you to give more information.
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hmm. i think device imei’s very easily replaceable
this is not a safe method
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- Have A Look Of This Video
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And why do you want to store every users’ IME? Use IP address instead.