What kind of operating system do I need to use the Alliant mobile banking app? The app is available on iPhone or Android smartphones using Apple iOS or Google Android. Supported devices currently include: Apple iOS: versions 12 through 1438 Android OS: versions 7 through 1136 All app updates are tested on a variety of devices from Apple, Samsung, Google, LG, Motorola, OnePlus, and Nexus. Ending support for out-of-date operating systems (OS) helps to ensure our members have a secure and consistent digital banking experience. If you have a smartphone with an out-of-date OS, you can use our mobile optimized online banking platform. For tablet users, please see our FAQ Can I use the Alliant mobile app on my tablet device?