I need to get mobile instant banner and sound alerts on iOS 12.4.8, when items match my searches on the [login to view URL] mobile app (UK) and Facebook Marketplace mobile app (UK). Facebook Marketplace sits within the Facebook mobile app.
Please only apply if you can help with this. Have had lots of false starts. Not sure what skills are required so have left just "iPhone and "Mobile App Development" from the auto-suggested ones. The solution doesn't have to look fancy. It just needs to work.