The rules are very, very simple.
1. For Android, use the Chrome browser. For IOS, use the Safari browser.
2. The Google Play store is a garbage dump of dangerous apps - except for maybe 4 or 5 apps. Just do NOT download every single thing you see there.
It...
more... seems people are recklessly downloading browsers & other apps from the Play store and other dubious sources, and then are complaining that they are getting random gambling ads, etc. Please always remember that the internet/play store/app store is a dangerous place full of criminals who are out to hack your phone and get your information.
Thanks.