2% of that already goes to stripe or whatever you use. after a year it's 15%. It also gives your both a distribution and marketing channel.
It was good enough for netflix etc.
*I* don't want applications to be able to update itself. Look at malware zoom for example.
It's funny that people don't like telemetry, but at the same time they're ok with regular software update checks + installs.
The same Netflix that's been spats with Apple over avoiding app store fees by flouting policies that had other apps kicked out of the store? I'd suggest that it was, in fact, not good enough for Netflix.
Your app can also be ready to receive notifications even when the app isn't running - using zero RAM. Inetd on Linux allows similar stuff (although no ability to handle ip changes or traverse NAT makes it fairly useless in the consumer world).
This stuff is important because polling dominates power use when idle - especially network polling which generally requires hundreds of milliseconds of system awakeness to handle tens of network packet arrivals simply for a basic http request.
Did you know, a typical android phone, if all polling is disabled, has a battery life of 45 days?
Just poll every launch or 24 hours and move on.