Do I need to install some kind of application on my phone to send push notifications?

Question

Android

It is necessary to send alerts from a C# application for Windows to users' smartphones.
SMS is expensive. Push notifications are free, but is it necessary to install any application on users' smartphones?

Answer 1

I understand correctly that you do not have any application of your own and you just want to send pushes to an abstract user in order to save money?
if yes, then this will not work
. The user's device must have an application that will receive push notifications

Answer 2

There is a way to send yourself Pushes with a small, free text, without registration and SMS. What you need is telegram. You start a bot, or even just a channel (it differs from a bot there that you can’t send anything to it). You subscribe yourself to it, make a simple backend and voila. Your bot writes to you - telegram sends you pushes.

Answer 3

on three projects I use sendpulse.com for free, there is api, it works on smart phones too