[jyrkesh]

I can't tell you how they do it, but Telegram is lightning fast with push notifications across all kinds of devices, including Android. Been rocking it as my primary messenger for years.

Whenever a few of us are sitting around in real life, and someone sends something to a group chat, all the phones on the table will buzz instantly together (iOS and Android).

And on top of that, battery usage is really low on Android. I use it a TON, and it's never in the top n apps of battery usage. Meanwhile, I can just open Snapchat once, and I lose a few percent.

[sudosysgen]

Telegram is GPL, I think it would be worth it to see how they use it, because it honestly is absolutely incredible.

[shmerl]

Telegram server is closed.

[sudosysgen]

Yes but the implementation of the notification handling is impressive on the client side. The server side software as far as this is concerned should be easily deducible and isn't the interesting part.

[saagarjha]

> Meanwhile, I can just open Snapchat once, and I lose a few percent.

That’s really a mark of Snapchat’s incompetence rather than Telegram’s adroitness.