this post was submitted on 11 Dec 2023
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In this video I discuss how a recent DOJ letter revealed that Apple and Google were sending peoples push notifications to foreign governments.

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[–] fartsparkles@sh.itjust.works 27 points 9 months ago* (last edited 9 months ago)

The general design is a single system component wakes up the device when it’s sleeping (such as during screen off) and checks in with Apple/Google servers to see if there are any notifications.

Why?

Imagine if every app needed to wake up your device and make network requests to check for notifications etc. The more apps, the faster your battery drain as a queue of apps grows, constantly waking up your device to call home and check for notifications.

Hence Push Notification Services. Instead, developers send a notification to Apple/Google who then pool those notifications with notifications from other apps/developers. Then the single notification service on your device periodically wakes up the device and checks for notifications.

Additionally, push notification systems by OSs are designed with efficiency and minimal networks requests and bandwidth utilisation so an app can’t chew up user’s data quotas due to being poorly written.

TL;DR: It saves battery and network data, enabling users to use more apps.