Any smartphone will send out a group text.
You dont even need to type it, just talk to it and you can send messages to your customers even if its just landlines.
I can't tell you how much easier it is. You schedule them all out at a certain time. You can even schedule in advance if youre on time with your work. I did it your way for a very long time thought I was being clever by saving £120 a year I was actually working more.
Think about it you do a long days work it's Wednesday and you're back home for 1900 hungry and you want to go to the gym or spend some time with your family you can't do that. Because you can't text customers late so you have to get it out of the way before it gets really late.
You now need to go to your database scroll down find the jobs that you need to message I know it can technically take a few minutes especially if you work alone but trust me you must have had that feeling where you just don't want to do it and you want to eat you want to watch a film and be normal at 7 it shouldn't be time for you to start texting people in uniform.
Now imagine casually on a Sunday setting up all your messages to go out all at a particular time
And date. It saves you a lot of time and stress if you ask me like I say I've been there for a long time and for a short time I can see a huge difference it's very much worth it in my opinion.