Yes, you’ll need an iPhone with iOS version 15 or higher, or an Android version 8.0 or higher.
This is the version name of the operating system on your phone (not the phone itself), which gets updated every now and then.
You need to have the Ticker app as part of your insurance policy, and eventually we stop supporting older operating systems.
You can find out which version of iOS or Android your phone has in your settings.
If you're on an older operating system version, you’ll need to update to have the Ticker app.