How about adding a scheduling feature in the app? Say for disarmed and home?
As an example, I could schedule the alarm to turn on home mode from 10pm to 6am. Then from 6am to 10pm, it would switch to disarmed. This way, nobody would forget to manually turn it on, before going to bed. I could see this only working for home and disarmed as the away mode should always be triggered by the app or keypad.