Did you know that 70% of spas still use Excel for their bookings? An opportunity for programmers

You ever walked into a spa and filled out a paper form… in 2025? I did. Just last month. And I remember thinking, “Wait, aren’t we all using apps for this stuff now?”

Turns out, nope.

About 70% of spas still use Excel spreadsheets, clipboards, or even (brace yourself)... notebooks to manage appointments, client history, inventory, and billing. That’s not just inefficient—it’s wild. Especially when you realize how much of it could be automated with just a lightweight app or internal tool.

So hey, if you're a dev looking for a niche… this might be your next client.

How I stumbled into this rabbit hole

A friend of mine owns a small spa in the suburbs. Great service. Clients love it. But she was spending hours a week juggling Excel sheets for appointments, and manually texting confirmations. Her front desk person quit, and suddenly she was in full chaos mode.

I offered to help build her something—nothing fancy. A little calendar interface, basic customer database, SMS confirmations.

The results? Let’s just say... she hasn't touched Excel in weeks.

Why spas are a goldmine for devs

Spas, especially the boutique kind, are usually run by amazing people who aren’t tech-savvy. They’re great with people, not databases.

That’s where you come in.

If you’ve ever built:

A CRUD app
A calendar system
A simple admin dashboard
A client booking flow
Payment integration (Stripe, Square, etc.)

…then you’ve already got 80% of the puzzle. The rest is just understanding what spas actually need.

🔧 Sample Code: Quick Booking API (Node.js + Express)

Let’s say you want to allow spa staff to create and list appointments. Here's a tiny backend snippet using Express:

// bookingRoutes.js
const express = require('express');
const router = express.Router();

const bookings = []; // Temp in-memory DB

// Create booking
router.post('/book', (req, res) => {
  const { name, service, time } = req.body;
  const newBooking = { id: Date.now(), name, service, time };
  bookings.push(newBooking);
  res.status(201).json({ message: 'Booking confirmed', booking: newBooking });
});

// List all bookings
router.get('/bookings', (req, res) => {
  res.json(bookings);
});

module.exports = router;

🧠 What do spas really need?

Let me break it down like I would for a friend over coffee. Here’s what most spas I’ve talked to desperately want help with:

Booking calendar – drag & drop is cool, but even a simple list with times works.
Client profiles – notes, past treatments, allergies, preferences.
Auto-reminders – SMS or email. Seriously, this alone saves them hours.
Inventory tracker – "Are we out of massage oil again?" Not anymore.
Basic reporting – revenue per week, per service, per staff member.

⚡ Firebase for the win (sample frontend code)

Firebase makes it stupid-easy to store and fetch client data. Here's a minimal example of adding a client with Firestore:

// Add client to Firestore
import { db } from './firebase';
import { collection, addDoc } from 'firebase/firestore';

async function addClient(name, email) {
  try {
    const docRef = await addDoc(collection(db, "clients"), {
      name: name,
      email: email,
      createdAt: new Date()
    });
    console.log("Client added with ID: ", docRef.id);
  } catch (e) {
    console.error("Error adding client: ", e);
  }
}

And a simple HTML form to use with it:

<form onsubmit="addClientForm(event)">
  <input type="text" id="name" placeholder="Client Name" required />
  <input type="email" id="email" placeholder="Email Address" required />
  <button type="submit">Add Client</button>
</form>

Real example? Here ya go:

I looked up one location just to see how common this was, and boom—I found this Spa in Frankfort. A real business with serious offerings.

Now imagine you're a dev who can offer them a better booking experience, or let clients schedule Coolsculpting Frankfort online without ever calling.

Or hey—what if someone wants to get Botox Frankford IL and the staff could instantly see their last visit, treatment notes, or even pre-fill consent forms? That’s the kind of micro-solution that feels magical to the staff, even if it’s basic dev work for us.

What’s in it for you?

💰 Clients willing to pay monthly (SaaS-lite for small biz? Yes please.)
👨‍💻 Portfolio project that’s easy to demo
🧠 Actually useful software (not another to-do list app, lol)
🤝 Real-world UX insight from non-technical users
🚀 Option to scale into a white-label product for other salons, clinics, etc.

Final Thoughts

You don’t need AI, blockchain, or a 12-tab Notion doc to make a difference here. Just care + code.

If you’ve been looking for a side hustle or a real-world build that matters, give this a shot. Talk to a local spa. Build a tiny MVP. Charge a setup fee and $20/month. Iterate.