Get the free Go PEMCO app from the Apple App Store or Google Play. To sign in on the app, use the same email and password that you use for your online account.
The Go PEMCO iPhone app is designed for iPhone and iPod touch, but also works on iPads. The device must have at least iOS 7 or later.
The Go PEMCO Android app is designed for phones but will also work on a tablet. The device must have at least Ice Cream Sandwich 4.0.1 (Android API 14) or later.