Can someone explain Texecom communication modules

Hi just writing out a shopping list and getting completely stuck at this, I would like to use the Texecom app on my phone to receive notifications would I ned the smart on module or a gsm module for sending text messages. Could someone explain in plain English what the different modules do ?
Thanks

The Smartcom will send notification alerts (not text messages) and/or emails to a smart phone and allow use of the Texecom Connect app to arm and disarm the system etc. It requires a working broadband connection so fails when the broadband router goes off during a power cut. It is currently free to use.

The GSM module will send text messages to a smart phone and allow remote arming/disarming if the user sends text messages to the alarm system. It will continue to work during power cuts as it uses a 2G sim card (not 3G, 4G or 5G) to connect to the mobile network. It doesn't work with the Texecom Connect app. If you use a PAYG sim you pay for every text message that it sends out.

You can install both if you wish.

Perfectly explained, many thanks for taking the time

Correct me if I'm wrong but isn't there a new SmartCom with GSM backup built in on the horizon or have I dreamt this up I currently use smartcom and it has it's downsides of no backup if the internet/power cuts out

CEL0007 not available yet and as far as I am aware the 4G enabled smart com is for GPRS coms / use of Texecom Connect App rather than SMS.

although awaiting confirmation of full functionality