1. Check your phone’s settings to see if pop-up notifications are enabled, if so, disable them.
2. Make sure to install security software to block pop-up ads that are being generated from malicious software on your phone.
3. Clear browsing data to reduce the amount of targeted ads coming through.
4. Check to update your mobile applications and uninstall those apps that aren’t necessary, as some apps can bring in adware.
5. Use only apps from trusted and reputable sources.