You're in good hands

We've been providing professional development services since 2004 using the latest, most cost effective methods to create apps that deliver results.

GEM Logo

Custom Development, It's What We Do

Custom built websites, mobile apps, system integrations, eCommerce.

Web & Mobile Apps

Are you looking to develop a website, mobile app or custom web application? Let our professional team work with you to deliver a robust, scalable, and cost-effective solution.

Custom Software Development

All businesses are unique, and creating your own custom software is often the best way to get the right results for your company. Let us help you build your competitive edge.

Software Integrations

Most businesses make use of various systems for the overall operations. We specialize in creating solutions to help your systems speak to each other simply and effectively.

What Clients Say

In service since 2004, and we’ve worked with some awesome clients who love us and our services. Check what they have to say about us.

Working with you was great! I found the experience professional and refreshing, you were a lot more hands on and available than previous developers I had used. You made me feel like you really cared about my project. Your approach was professional and attentive.

Kosta Avgoustinos
Director at Cover Price & DP Hyundai Strijdompark

I am very satisfied with the service that is rendered, questions and responses are very promptly attended to and on the whole there is nothing I can think of that could improve the service. Thank you for all your assistance and service

Steven Sher
GM at Techtron Computers

I’ve been working with Stephen and the team at GEM Custom Apps since 2013. GEM has delivered results on a number of projects, and I’m very happy with their services, and continued after sales service and support. I would definitely recommend them, 10 out of 10.

Gareth Chapple
CEO of Creative Portal & MD of AV Dynamix

I always enjoyed working with you guys, no issues and I liked the professional way in which you tackled our projects.

Pedro Pereira
MD: Emerging Brands, Motus (Member of the Imperial Group)

Previous Work

Below are a few of the projects we've had the privilege to be involved with.



Web App / Integration
The client was in need of a solution to simplify their sales process. We created a web app that provided an integration between their accounting package and eCommerce platform.


Multiple Integrations / Responsive Website
This system was a rebuild of an existing project. The scope was to improve performance and introduce new functionality so the business could easily expand.


Mobile App / Integration / Web-App Backend
For this project the client required a rebuild of an existing Mobile App to introduce all new functionality and design, and bring it up to date with current technology.


Web App / Systems Integration
gemSync was design to provide a seamless integration between Autotask and Sage Pastel Accounting, transferring billing data automatically with no user intervention.

How does it work?

Find out more about our process below.

Step 1: Plan

1. App Scoping

Our team will work with you to uncover the requirements and detailed scope of the application, as well as understanding the required flow, user interactions, and the goals and objectives of the app.

2. Wireframing & Project Spec

Once the scope of the app and desired user flows are determined, our team will build out the prototype using a wire-framing tool, creating all the required screens and interactions.

We'll create a functional specification document that details how each screen or step of the process should work.

3. UI/UX, Prototype & Project Plan

Now that we're clear on what needs to be built and why, our design team can produce the full UI/UX design while our senior dev team creates a system architecture plan.

We'll also provide a cost and time proposal to carry out the full development & implementation of the project.

Step 2: Build

4. Development

With the spec and design ready, our team starts coding where we develop, test, and deliver working features at regular intervals. We'll base the deliverables on your priorities, so that you can get to market as fast as possible.

5. Feedback & Testing

We'll assist with alpha & beta releases, manage feedback channels, and review, implement and test feedback.

These are crucial steps to delivering a smooth experience to users when the project goes to market.

6. Pre-Launch

Development is done and the product tested, it's time to get ready for a launch. We'll assist you with a smooth rollout. Deploying to app stores, taking websites live, turning on services and handing over to support teams are all part of this phase.

Step 3: Support & Grow

7. Support

The app/website is live, but you need to provide user and system support, having performance and error monitoring in place, and have up to date product documentation.

We offer a full service desk with SLA ready to handle all your requests, and manage all the monitoring and reporting aspects too.

8. Feedback & Improvements

It's important to gather user feedback, react to market changes and provide ongoing value. To do so you need to have effective user feedback channels, review and management of feature requests, and ongoing implementation of improvements.

Our team can be on-hand to offer advice and assist you, or provide done-for-you management of the process.

9. Grow Your Userbase

You'll most likely want to implement processes to grow your user base and increase the business value of your app/project. 

This may include implementing marketing websites, growth campaigns, SEO, Pay-Per-Click advertising, content marketing and various other strategies. Our team is ready to help make it a raving success.

Ready to start?

Complete the project questionnaire below.

We specialize in creating great quality apps using a well-tuned process. We work with people who want to create results for their new or existing businesses.

Unfortunately we cannot help everyone, so we invite you to fill out our project application form below to find out if we might be a good fit.

This is also an opportunity for you to tell us why you need an app or website, and what it should achieve. The more information you give us here, the better the solution we would be able to provide. Ignore any questions that aren't relevant.


Block A, Wedgefield Office Park,
17 Muswell Road South, Bryanston
Johannesburg, South Africa


+27 (0) 10 593 0423