Check which app is showing the ads
Uninstall recently installed suspicious apps
Remove apps with “draw over other apps” permission
Disable notifications from ad-heavy apps
Turn off personalized ads in Google or Apple settings
Clear browser data and site permissions
Use a browser with built-in ad blocking
Install a trusted ad blocker app if supported
Scan your phone with a reputable security app
Update your phone’s operating system
Update all installed apps
Reset app preferences if ads keep appearing
Factory reset the phone if the problem continues