Custom apps & software · South Africa

Software that fits how your business works

BNJ Development builds custom web apps, mobile-friendly apps and business systems for South African businesses — designed around the way you work, not the other way around.

What we build

Custom apps and software

When off-the-shelf software doesn’t fit, we build something that does — from a simple booking system to the tools your whole team runs on.

Custom web apps

Booking systems, customer portals, dashboards and internal tools that run in any browser, on any device.

Apps for phones

Apps your customers or staff add to their home screen on Android and iPhone — with notifications and offline use, from one build and without app-store fees.

Business systems & automation

Replace spreadsheets and paperwork with a system that tracks jobs, quotes, stock or staff — and does the repetitive work for you.

Payments, bookings & integrations

Online payments, bookings, email, WhatsApp and Google, connected to the tools you already use.

Our products

Software we make for South African businesses

BNJ Marketing App

Available now

Helps small businesses market themselves: snap a photo of your work and get ready-to-share posts for every platform you use, plus a free business page with online bookings.

  • Posts for Facebook, Instagram, WhatsApp, TikTok, LinkedIn and Google
  • A free business page that Google can find, with bookings
  • Reminders, Google review requests and a team view
  • Plans from R199 a month, with a 7-day free trial
Visit BNJ Marketing App

HR software

Coming soon

We’re building HR software for South African businesses — staff records, leave and day-to-day HR admin in one place, so you spend less time on paperwork and more time on your people.

Want to try it first, or tell us what your business needs from it? We’d love to hear from you.

Register your interest

How we work

Clear steps, no surprises

  1. A free first chat

    Tell us what you need. We’ll ask questions and tell you honestly whether custom software is the right answer.

  2. A clear plan and quote

    You get a written plan: what we’ll build, in what order, how long it takes and what it costs.

  3. Built in stages

    We build in small steps you can see and try along the way, so the final result is what you expected.

  4. Launch and support

    We put it live, show your team how to use it, and stay on hand for updates and fixes.

What you can expect

Plain language

We explain things without jargon, so you always know what you’re paying for and why.

Privacy and security built in

We design with South Africa’s POPIA in mind: your data and your customers’ data are protected from the start.

Your data stays yours

Your business information belongs to you, and we make sure you can get it out whenever you need it.

About us

A South African software business

BNJ Development is run by Bianca Joseph. We build practical software for small and growing businesses — and our own products, like BNJ Marketing App, which helps tradespeople, salons and freelancers get seen online.

We’re a small business ourselves, so we keep things simple, honest and affordable.

Let’s talk about your project

Have an idea, or a problem software could solve? Email us — tell us a little about your business and what you need.