Open my app when it's killed or in background by event

Dear developers,

Are there any ways to open my App when a specific trigger event happens?
For instance, if my phone reads a specific NDEF message from an NFC tag, then a specified app opens even if that app is killed or in background.
I know that could be done with iphone’s shortcuts app, but I would like to implement it into my app for iOS and Android too.
Thank you for your helping! :wink:

@wodin Do you have any idea for this?

Off hand I don’t really know.

A push notification could do it.

Otherwise if the “event” can trigger opening a URL, then look into Linking.

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