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Users must opt in though. It’s part of the iOS set up to allow this and you can change it any time

• lern_too_spel 6y ago
  This setting is opt out, not opt-in. It's unclear if opting out hides the data from Apple or just from the app developers.
  • Nextgrid 6y ago
    It is opt-in now; when setting up iOS for the first time it asks you if you'd like to enable "iPhone analytics" (OS-wide analytics for Apple) and if you accept then it asks you whether you want to share the analytical data with the app developers.
• Dahoon 6y ago
  It's opt out.
  • saagarjha 6y ago
    No, it’s opt in when you set up your device.
• deleted 6y ago
  [deleted]