GEM Custom Apps

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Details

Founded:
2003
Hourly Rates:
Undisclosed
Employees:
2 - 9
Ratings:
4.7 8 Reviews

Industries Served

Gaming & Gambling Education Human Resources Events & Event Management Information Technology Nonprofit & NGO Legal Services Agriculture

Where We Specialize

21% Bot Development
Bot Development 21%
CodeIgniter 21%
Web Development 19%
Mobile App Development 17%
AI Consulting 17%
AI Development 3%
Game Development 2%

Industry Expertise

Automotive100%

Typical Project Size

43% Midmarket Business
38% Enterprise
19% Small Business

About

Businesses looking for a reliable technology partner often consider GEM Custom Apps. GEM Custom Apps focuses on Mobile App Development and Web Development. The company operates with a team of 2 - 9 professionals. The team is based in Johannesburg, South Africa. These details offer a useful starting point when evaluating GEM Custom Apps.

GEM Custom Apps Reviews

4.7 8 Reviews
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Strong Technical Skills and a Very Responsive AI & Machine Learning Team

Oliver Doyle / Owner | Oct 02, 2026

I would rate this engagement highly on almost every front. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later. They were upfront about what was realistic within our budget, which helped us prioritise the right features. Even with the time zone difference, responses usually came the same day and we never felt left in the dark.

Since launch, everything has been stable and our team has adapted to it quickly. We are already discussing the next phase with them.

Project summary

We hired GEM Custom Apps to automate document data extraction that our team was doing by hand. They also took care of integrations with a couple of third-party tools we already used. We worked together for around 9 months.

  • Overall Rating 4.5
  • Quality 4.5
  • Schedule 4.5
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
AI & Machine Learning
Project Cost:
$150,000 to $499,999
Project Duration:
Nov 2025 - Aug 2026
Business Type:
Gaming & Gambling
Location:
Cardiff, UK

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Owner at Stonebridge Gaming Ltd, a Gaming & Gambling company based in Cardiff, UK. I look after our technology and work closely with outside partners on bigger projects.
What specific problem or business challenge led you to hire this company?
Our team was spending too much time on manual work. The goal was to automate document data extraction that our team was doing by hand so they could focus on customers.
What services did the company provide for your project?
AI & Machine Learning, including planning, development, testing and launch support.
Why did you choose this company over other providers you considered?
We compared three or four agencies. GEM Custom Apps asked the best questions and had good reviews from past clients.
How clearly did the company understand your requirements and business goals?
Very well. They asked a lot of questions upfront and turned our rough ideas into a clear plan.
How was your overall experience with their communication and project management?
Communication was good overall and improved further once we settled into a routine.
Did the company deliver the project on time and within your expected budget?
Mostly. One milestone slipped by about a week, but the final delivery was on schedule and the budget held.
What tangible results or business impact have you seen since the project was completed?
Customer feedback has been positive, and we have seen better engagement since going live.
What did you like most about working with this company?
How easy they were to work with. They were responsive, honest and genuinely interested in our success.
Would you recommend this company to others, and would you work with them again?
Yes, I would recommend them and we plan to work with them again.

Solid Web Development Work With Clear Communication Throughout

Daniel Saleh / Director | Sep 03, 2026

GEM Custom Apps did an excellent job for us. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later. We dealt with the same core team throughout, so we did not have to keep re-explaining things.

We are already seeing better numbers than before the project. Happy to recommend them.

Project summary

We hired GEM Custom Apps to rebuild a slow, outdated web app and move it to a new framework. They worked alongside our in-house team, which mostly handled business requirements and testing. The project took roughly 7 months from kickoff to launch.

  • Overall Rating 4.5
  • Quality 4.5
  • Schedule 5.0
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
Web Development
Project Cost:
$10,000 to $49,999
Project Duration:
Dec 2025 - Jul 2026
Business Type:
Education
Location:
Sharjah, UAE

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Education company based in Sharjah, UAE. I'm the Director and I oversaw the project from start to finish.
What specific problem or business challenge led you to hire this company?
We needed to rebuild a slow, outdated web app and move it to a new framework, and we didn't have the in-house capacity to do it ourselves.
What services did the company provide for your project?
Web Development, including planning, development, testing and launch support.
Why did you choose this company over other providers you considered?
We compared three or four agencies. GEM Custom Apps asked the best questions and had good reviews from past clients.
How clearly did the company understand your requirements and business goals?
Well. There were a couple of points we had to clarify early on, but after that they were spot on.
How was your overall experience with their communication and project management?
Communication was good overall and improved further once we settled into a routine.
Did the company deliver the project on time and within your expected budget?
Mostly. One milestone slipped by about a week, but the final delivery was on schedule and the budget held.
What tangible results or business impact have you seen since the project was completed?
We can now handle more volume without adding staff, which was the main goal.
What did you like most about working with this company?
How easy they were to work with. They were responsive, honest and genuinely interested in our success.
Would you recommend this company to others, and would you work with them again?
Definitely. We have already started talking about the next phase.

Professional team that made a complex project feel manageable

Niamh Byrne / Director | Aug 29, 2026

Overall we had a good experience working with GEM Custom Apps. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building. When we changed our minds on a couple of features halfway through, they handled it without fuss and were clear about the impact on cost and timeline. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later.

We launched on schedule and have not had any major issues since. Estimates on a few features were optimistic and those took longer than planned. We are already discussing the next phase with them.

Project summary

We hired GEM Custom Apps to port our game to new platforms and improve performance. Their team handled planning, development and QA, with our product owner signing off each milestone. The project took roughly 3 months from kickoff to launch.

  • Overall Rating 4.0
  • Quality 4.0
  • Schedule 4.0
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
Game Development
Project Cost:
$50,000 to $149,999
Project Duration:
May 2026 - Aug 2026
Business Type:
Human Resources
Location:
Galway, Ireland

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Human Resources company based in Galway, Ireland. I'm the Director and I oversaw the project from start to finish.
What specific problem or business challenge led you to hire this company?
Our team was spending too much time on manual work. The goal was to port our game to new platforms and improve performance so they could focus on customers.
What services did the company provide for your project?
End-to-end Game Development — from requirements and design through to deployment and a support period afterwards.
Why did you choose this company over other providers you considered?
Their pricing was fair and they were honest about timelines instead of just telling us what we wanted to hear.
How clearly did the company understand your requirements and business goals?
Better than we expected. They pointed out a few things we had not thought about.
How was your overall experience with their communication and project management?
Very responsive. We usually heard back the same day, even with the time difference.
Did the company deliver the project on time and within your expected budget?
It was delivered on time, and the final invoice matched the original estimate.
What tangible results or business impact have you seen since the project was completed?
Customer feedback has been positive, and we have seen better engagement since going live.
What did you like most about working with this company?
How easy they were to work with. They were responsive, honest and genuinely interested in our success.
Would you recommend this company to others, and would you work with them again?
Definitely. We have already started talking about the next phase.

Would happily work with them again

Mark Fisher / Owner | Jul 21, 2026

I would rate this engagement highly on almost every front. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building. The developers were knowledgeable and made a few suggestions that ended up saving us time and money. We dealt with the same core team throughout, so we did not have to keep re-explaining things.

It has made a real difference to how our team works day to day. Happy to recommend them.

Project summary

We hired GEM Custom Apps to port our game to new platforms and improve performance. The project was split into milestones, with a working build shared at the end of each one. The project took roughly 9 months from kickoff to launch.

  • Overall Rating 4.5
  • Quality 4.5
  • Schedule 4.5
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
Game Development
Project Cost:
$10,000 to $49,999
Project Duration:
Sep 2025 - Jun 2026
Business Type:
Events & Event Management
Location:
San Jose, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Owner at Crestview Events Inc, a Events & Event Management company based in San Jose, USA. I look after our technology and work closely with outside partners on bigger projects.
What specific problem or business challenge led you to hire this company?
Our existing setup was holding us back. We wanted to port our game to new platforms and improve performance before our busy season.
What services did the company provide for your project?
Game Development, plus QA and some consulting on how to structure the project.
Why did you choose this company over other providers you considered?
We compared three or four agencies. GEM Custom Apps asked the best questions and had good reviews from past clients.
How clearly did the company understand your requirements and business goals?
They understood our goals quickly, partly because they had worked with Events & Event Management clients before.
How was your overall experience with their communication and project management?
Good. Weekly calls, regular updates and a shared board meant we always knew where things stood.
Did the company deliver the project on time and within your expected budget?
It was delivered on time, and the final invoice matched the original estimate.
What tangible results or business impact have you seen since the project was completed?
Our team saves several hours a week, and we have had very few issues since launch.
What did you like most about working with this company?
Their attention to detail and the quality of the final product.
Would you recommend this company to others, and would you work with them again?
Yes, I've already recommended them to a couple of people I know.

Great Experience With GEM Custom Apps on Our Web Development Project

Jack Nguyen / Founder | Jul 17, 2026

GEM Custom Apps did an excellent job for us. The developers were knowledgeable and made a few suggestions that ended up saving us time and money. When we changed our minds on a couple of features halfway through, they handled it without fuss and were clear about the impact on cost and timeline. Their project manager kept things organised and was quick to flag anything that might affect the timeline.

We launched on schedule and have not had any major issues since. I would recommend GEM Custom Apps to anyone looking for a dependable Web Development partner.

Project summary

We partnered with GEM Custom Apps to redesign and rebuild our company website on a modern stack. The work covered requirements, design, development, testing and launch support. The project took roughly 2 months from kickoff to launch.

  • Overall Rating 5.0
  • Quality 5.0
  • Schedule 5.0
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
Web Development
Project Cost:
$10,000 to $49,999
Project Duration:
Mar 2026 - May 2026
Business Type:
Information Technology
Location:
Melbourne, Australia

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Founder at Blue Harbor Labs Pty Ltd, a Information Technology company based in Melbourne, Australia. I look after our technology and work closely with outside partners on bigger projects.
What specific problem or business challenge led you to hire this company?
Our team was spending too much time on manual work. The goal was to redesign and rebuild our company website on a modern stack so they could focus on customers.
What services did the company provide for your project?
Web Development, including planning, development, testing and launch support.
Why did you choose this company over other providers you considered?
A colleague recommended them, and our first calls confirmed they understood what we needed.
How clearly did the company understand your requirements and business goals?
Well. There were a couple of points we had to clarify early on, but after that they were spot on.
How was your overall experience with their communication and project management?
Organised and transparent. Their project manager kept the project on track and flagged risks early.
Did the company deliver the project on time and within your expected budget?
Yes, on time and within budget.
What tangible results or business impact have you seen since the project was completed?
Customer feedback has been positive, and we have seen better engagement since going live.
What did you like most about working with this company?
The consistency. Same team, same standard, from the first week to the last.
Would you recommend this company to others, and would you work with them again?
Yes, I've already recommended them to a couple of people I know.

Professional Mobile App Development Team, Smooth Delivery From Start to Finish

Omar Khan / Marketing Director | Jul 16, 2026

Honestly, this was one of the smoothest projects we have run with an outside team. They shared working builds regularly, so we could test early and give feedback before things were locked in. The developers were knowledgeable and made a few suggestions that ended up saving us time and money. They were upfront about what was realistic within our budget, which helped us prioritise the right features.

We are already seeing better numbers than before the project. We would definitely work with them again.

Project summary

We partnered with GEM Custom Apps to develop a field-staff app with offline mode that syncs back to our main system. They worked alongside our in-house team, which mostly handled business requirements and testing. The engagement ran for about 2 months.

  • Overall Rating 5.0
  • Quality 4.5
  • Schedule 5.0
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
Mobile App Development
Project Cost:
$50,000 to $149,999
Project Duration:
Mar 2026 - May 2026
Business Type:
Nonprofit & NGO
Location:
Dubai, UAE

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Marketing Director at Pioneer Foundation LLC, a Nonprofit & NGO company based in Dubai, UAE. I look after our technology and work closely with outside partners on bigger projects.
What specific problem or business challenge led you to hire this company?
We needed to develop a field-staff app with offline mode that syncs back to our main system, and we didn't have the in-house capacity to do it ourselves.
What services did the company provide for your project?
Mobile App Development, plus QA and some consulting on how to structure the project.
Why did you choose this company over other providers you considered?
They had relevant experience in Nonprofit & NGO and their proposal was the clearest of the ones we received.
How clearly did the company understand your requirements and business goals?
They understood our goals quickly, partly because they had worked with Nonprofit & NGO clients before.
How was your overall experience with their communication and project management?
Communication was good overall and improved further once we settled into a routine.
Did the company deliver the project on time and within your expected budget?
Yes, on time and within budget.
What tangible results or business impact have you seen since the project was completed?
Customer feedback has been positive, and we have seen better engagement since going live.
What did you like most about working with this company?
That they were proactive — they suggested improvements instead of just doing what was asked.
Would you recommend this company to others, and would you work with them again?
Definitely. We have already started talking about the next phase.

Skilled Game Development Team That Understood Our Business

Andre Morgan / CEO | Apr 23, 2026

Honestly, this was one of the smoothest projects we have run with an outside team. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building. They were upfront about what was realistic within our budget, which helped us prioritise the right features. Communication was consistent. We had a weekly call, a shared Slack channel and a project board we could check at any time.

We launched on schedule and have not had any major issues since. Overall, a team we trust and plan to keep working with.

Project summary

We hired GEM Custom Apps to develop a casual mobile game from concept to launch. They also took care of integrations with a couple of third-party tools we already used. The project took roughly 3 months from kickoff to launch.

  • Overall Rating 5.0
  • Quality 5.0
  • Schedule 5.0
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
Game Development
Project Cost:
$10,000 to $49,999
Project Duration:
Jan 2026 - Apr 2026
Business Type:
Legal Services
Location:
Minneapolis, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as CEO at Fairway Law Group Inc. We operate in Legal Services and most of our customers are in and around Minneapolis, USA.
What specific problem or business challenge led you to hire this company?
Our team was spending too much time on manual work. The goal was to develop a casual mobile game from concept to launch so they could focus on customers.
What services did the company provide for your project?
Mainly Game Development. They also helped with the technical planning and a few integrations with our existing tools.
Why did you choose this company over other providers you considered?
Their pricing was fair and they were honest about timelines instead of just telling us what we wanted to hear.
How clearly did the company understand your requirements and business goals?
They understood our goals quickly, partly because they had worked with Legal Services clients before.
How was your overall experience with their communication and project management?
Very responsive. We usually heard back the same day, even with the time difference.
Did the company deliver the project on time and within your expected budget?
It was delivered on time, and the final invoice matched the original estimate.
What tangible results or business impact have you seen since the project was completed?
It is still early, but the numbers are trending in the right direction and the system has been stable.
What did you like most about working with this company?
The consistency. Same team, same standard, from the first week to the last.
Would you recommend this company to others, and would you work with them again?
Yes, I would recommend them and we plan to work with them again.

Exceeded our expectations on quality and communication

Lerato van der Merwe / Co-Founder & CTO | Mar 30, 2026

I would rate this engagement highly on almost every front. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building. Communication was consistent. We had a weekly call, a shared Slack channel and a project board we could check at any time.

We are already seeing better numbers than before the project. I would recommend GEM Custom Apps to anyone looking for a dependable Game Development partner.

Project summary

GEM Custom Apps was brought in to develop a casual mobile game from concept to launch. The work covered requirements, design, development, testing and launch support. We worked together for around 7 months.

  • Overall Rating 5.0
  • Quality 4.5
  • Schedule 5.0
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
Game Development
Project Cost:
$150,000 to $499,999
Project Duration:
Jun 2025 - Jan 2026
Business Type:
Agriculture
Location:
Cape Town, South Africa

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Co-Founder & CTO at Stonebridge Growers (Pty) Ltd, a Agriculture company based in Cape Town, South Africa. I look after our technology and work closely with outside partners on bigger projects.
What specific problem or business challenge led you to hire this company?
We had tried to do this internally and it stalled. We needed specialists to develop a casual mobile game from concept to launch.
What services did the company provide for your project?
Game Development, plus QA and some consulting on how to structure the project.
Why did you choose this company over other providers you considered?
We compared three or four agencies. GEM Custom Apps asked the best questions and had good reviews from past clients.
How clearly did the company understand your requirements and business goals?
Very well. They asked a lot of questions upfront and turned our rough ideas into a clear plan.
How was your overall experience with their communication and project management?
Communication was good overall and improved further once we settled into a routine.
Did the company deliver the project on time and within your expected budget?
Yes. The only extra cost came from features we added ourselves, and they quoted those fairly.
What tangible results or business impact have you seen since the project was completed?
Customer feedback has been positive, and we have seen better engagement since going live.
What did you like most about working with this company?
Their attention to detail and the quality of the final product.
Would you recommend this company to others, and would you work with them again?
Yes, I've already recommended them to a couple of people I know.
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