Product build
WhatsApp Business System
Nothing to install. The product is the conversation.
There is no app to download. The customer writes a message the way they would write to a friend, and everything the business does for them happens inside that one conversation.
This one was built for a client. The name on it is theirs to give out, not ours.

Where it runsOn a rented server that stays awake around the clock, because a message can arrive at four in the morning.
Who is this for?
A service business whose customers will never install another app, and the staff behind it who need a real screen to see what all those chats are doing.
What the numbers mean
Checks that run before anything reaches a customer's phone.
The billing code cannot break the reminders, because they are not the same code.
Every change is logged, so a problem can be traced back to the exact change that caused it.
How it actually works
The customer downloads nothing. They send a message in an app they already have open, and they get answers, reminders and a bill without ever leaving it.
That is easy to say and expensive to build. A message can turn up at four in the morning, or twice, or in the wrong order, and the business still has to do the right thing exactly once. So every message that arrives goes into a waiting list, and each one moves through steps that are written down, so anyone can see where it got to.
The system has a second face that customers never see: the screen the staff work on. Who is waiting, what was promised, what went wrong overnight, what to charge.
Nothing goes out without being read first. Every message the system is about to send is checked by a separate piece of code before it leaves, because the only thing worse than a slow answer is a wrong answer sent to the wrong person.
This is the biggest thing on this page and it is still growing. 418 recorded rounds of work so far, spread across 19 separate parts that each do one job.
Your customers already live inside a messaging app. This is what it takes to run a real business in there, including taking the money.
We build things like this. Tell us what you are stuck on.
What it is built with
- Python
- Flask
- PostgreSQL
- Alembic
- WhatsApp Cloud API
- Stripe
