If you have a Dimension or Flex panel with Ethernet module, you can use Honeywell GX app or SelfMon Virtualkeypad app to remote control your panel.
If you have a G3 or classic panel, only the Selfmon app will work.
If you have a G2 panel, then only the Selfmon app will work, but it needs an LCE-01 Ethernet module fitted.
The Selfmon app also works with webway module and any other module that has passthrough, giving full remote keypad control too.
Monitoring via push notifications is free. Selfmon has a minimal account charge and multiple options for path checking and message notification types.