ShiftCal for Baltimore City Fire Department displays the four-platoon Baltimore shift schedule, including vacation days, impact days, and paydays. Hardware requirements: ARM7 CPU with NEON support. GPU (graphics processing unit). OS versions supported: Ice Cream Sandwich: Android 4. 0. 3. Jelly Bean: Android 4. 1. KitKat: Android 4. 4. Lollipop: Android 5.