Smart Start supports all phones that are currently being supported by Android and Apple. Please click on the links listed here to determine if your phone is currently supported (usually shown in green):
Apple: https://en.wikipedia.org/wiki/IPhone#Hardware
Android: https://en.wikipedia.org/wiki/Android_version_history
Please note that, if for some reason, you are not able to use our mobile app on your phone, you can always use a computer at www.myportal.smartstartinc.com.