What's a good Android app for managing different texting groups for my business contacts?

Look, I run a small business. Time is money, plain and simple. I was wasting too much time sorting through texts from clients, suppliers, and everyone in between. This Messenger app lets me create different groups – clients, suppliers, contractors – you name it. It streamlines the whole workflow. I can send out a quick update to all my contractors at once, or follow up with a specific client without scrolling through a million messages. The ROI is solid. I figure it saves me about an hour each week just by keeping things organized. That's an hour I can spend actually making money. It's simple, it works, and it's worth every penny.