Ellen questions

Ellen answers

• Support multiple iOS SDK versions when nullability of a protocol changes
• paymentQueue: updatedTransactions: not called during restore
• Is it possible to send SILENT LOCAL notification on iOS
• How to quit or close single simulator from opened multiple simulator in Xcode 9?
• Create an (repetitive high pitch) Alarm on a remote trigger when App is not running (iphone/android) just like Find My iPhone