Except in Italy, where it is called Tachipirina for some reason

And the gender. And whether they had chromosomal anomalies

I too used the native app on Android (mostly bc I was a quite recend user, and initially I did not know about all the 3rd apps stuff). It was quite buggy (video player worked only half of the times, it was impossible to open external links on my browser, it forced me to open them in-app), but the main reason I’m here is for ideological reasons (like OP)