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this post was submitted on 13 Dec 2023
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But why would a copy of the notification history exist outside of the phone itself? I can't think of a reason why notifications should be collected at all.
Imagine you have 20 apps that can send receive notifications from remote (messaging apps, offers, updates...). That would require each app to be active in the background and pulling updates. That's a massive battery drain.
Instead, the apps send the notifications to Apple/Google, and the OS checks for all of the apps. The apps don't need to be awake (the OS could show the notification or wake the app) and there's only one service checking for the ml notifications.
It's a massive oversimplifying and probably I made some mistakes, but that's my understanding. Hopefully somebody can correct me.
Apparently that's how it works.
I'd imagine a notification service on the phone that can receive or pull from all the various sources on behalf of the apps installed. That way the app servers don't need to hand the data to Apple/Google servers. It just seems like an extra step.
On Apple, there’s only one notification service. All notifications get pushed through https://en.m.wikipedia.org/wiki/Apple_Push_Notification_service which go through Apple’s servers
Well, the problem is that every would need to have their own server with notifications waiting to be pulled (imagine your phone goes offline) and they need to be beefy enough to answer potentially thousands of requests per second. Almost impossible for small devs.
There's also additional battery need, as it's many calls and payloads, and if a server is slow it can affect all the other notifications. Plus more area of attack.
Not impossible, but I don't think it's the direction things will go.
there’s a lot of different reasons why it might exist, depending on how the app or service work. some might have no data history, some might have a lot with a long footprint. some apps/services may benefit from rethinking how their app/services handles/routes this data.
it’s complicated.
That makes some sense for an individual app collecting its own history.
Apple or Google collecting all notifications seems like data collection for its own sake, with no real useful purpose.
oh, I se the misunderstanding— you’re confusing simple on-device app notifications with notifications using the Push service, which actually requires being sent through Apple’s or Google’s servers and may originate outside or your device from a service on a 3rd-party server.
Oh! I didn't realize they actually went through Google or Apple servers. Not sure why that's a necessary step, but at least it explains why they would have the data at all.
Thanks
Yeah, not all notifications originate from apps on your device. If, say, Amazon, updates, your delivery status, a push notification gets sent to your Amazon app from Amazon, then you get a notification on your device. That push notification goes through either googles servers or apples servers before it gets to you, that way, they know what device to send it to. That device ID is registered the app on your device with either Apple or Google on their servers.