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  1. M

    iOS Question Firebase messaging token - detect app uninstall

    Hi everyone.. i've a big problem, i must know if a user has uninstalled the app. I use firebase messaging to send push notification using a token. There is a way to know if a user has deleted the app? I read that maybe using the fact that the firebase token became invalid after a while... but i...
    • Mike1970
    • Thread
    • delete fcm invalid push notification token uninstall
    • Replies: 10
    • Forum: iOS Questions
  2. P

    Android Question Amazon Appstore: Invalid apk

    Hello. I've been trying to upload my app on the amazon appstore but it returns "Invalid APK" I read on their forums that maybe your apk is missing Version Code and Version Name attribute. Try adding #VersionName and #VersionCode in the build.gradle file. OK, but how do i add them when i'm not...
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