Why does Telegram work on Android and not on iPhone?

Question

Telegram

Why does Telegram work on android without dancing with a tambourine (Xiaomi), but does not work on iPhone?

Answer 1

Works

Answer 2

Works everywhere without dancing.
So what’s wrong with them (the level of encryption is so-so, although they are promoted, on the contrary, like a secure messenger https://habr.com/ru/company/virgilsecurity/blog/418535/ ),
but from the point of view of normal operation - claims Telegram does not.
It eats fewer resources than competitors, it is written normally.
Maybe your Android is too old? Or did you, without hesitation, dig into the settings and limit something to this application there?