My family and I have been using this app for more than a year on iPads which serve as our keypads, instead of proprietary Elk keypads. There are 2 major flaws which make it extremely difficult to use this app.
Apparently, Jayson has programmed the buttons so that, when inputting information, each key must both be touched (pressed) and, simultaneously, a SOUND must be elicited when touching the key. If the user fails to get the sound, the program fails to acknowledge that the button was pressed! This is bizarre! In spite of using hundreds of iOS apps, I have yet to find another app which requires a sound to accompany a button press. This "feature" makes entering numbers to disarm an armed system difficult and leads to many false alarms, as my family has experienced. I fail to understand why it is programmed in such a unique, difficult, and ineffective way!!
The second issue is a relatively simple design flaw. The LED lights--red to indicate that the system is armed and green to indicate it is disarmed--on a typical Elk keypad are represented by small, colored dots in this app. However, if one uses an iPad on a wall, that tiny, 2-dimensional dot is not decipherable from a few feet away! The same thing is true about the thin lines above buttons like "Stay" or "Away" which turn red to indicate the respective button is activated. The point is that the surface of an iPad is not identical to physical, 3-dimensional objects like small, LED lights.
I know that Jayson has been provided with some solutions. Apparently, he has no interest in implementing them. It is a shame, as a simple design fix to this app would permit users to comfortably and fully utilize iPad's instead of proprietary keypads!