GB Development Services

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Details

Founded:
2020
Hourly Rates:
< $25 / hr
Employees:
Freelancer
Ratings:
4.4 8 Reviews

Industries Served

Mining & Metals Information Technology Media & Entertainment Healthcare Gaming & Gambling Advertising & Marketing

Where We Specialize

18% Mobile App Development
Mobile App Development 18%
Blockchain Development 18%
Game Development 17%
Web Development 14%
Cloud Computing Services 13%
Bot Development 9%
Virtual Reality 8%
AI Development 3%

Industry Expertise

Insurance60% Automotive40%

Typical Project Size

42% Enterprise
39% Midmarket Business
19% Small Business

About

GB Development Services works with clients to plan, build, and ship digital products. The company's main offerings are Cybersecurity and Custom Software Development. GB Development Services works solo as a freelance specialist. Typical hourly rates run around < $25 / hr/hr. These details offer a useful starting point when evaluating GB Development Services.

GB Development Services Reviews

4.4 8 Reviews
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Would happily work with them again

Lena Becker / Senior Product Manager | Sep 10, 2026

The project went well overall. They shared working builds regularly, so we could test early and give feedback before things were locked in. 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. We had to follow up a few times on smaller bug fixes after launch. We are already discussing the next phase with them.

Project summary

Our company worked with GB Development Services to add an AI chatbot to our support site that answers questions from our help docs. The work covered requirements, design, development, testing and launch support. Overall it was a 8-month engagement.

  • Overall Rating 4.0
  • Quality 4.0
  • Schedule 3.5
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
AI & Machine Learning
Project Cost:
$150,000 to $499,999
Project Duration:
Nov 2025 - Jul 2026
Business Type:
Mining & Metals
Location:
Berlin, Germany

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Senior Product Manager at Atlas Minerals GmbH. We operate in Mining & Metals and most of our customers are in and around Berlin, Germany.
What specific problem or business challenge led you to hire this company?
We needed to add an AI chatbot to our support site that answers questions from our help docs, and we didn't have the in-house capacity to do it ourselves.
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?
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?
They understood our goals quickly, partly because they had worked with Mining & Metals 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?
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.

Professional team that made a complex project feel manageable

Olivia Stewart / Co-Founder & CTO | Aug 07, 2026

I would rate this engagement highly on almost every front. They were upfront about what was realistic within our budget, which helped us prioritise the right features. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later. They shared working builds regularly, so we could test early and give feedback before things were locked in.

The result looks great and performs well, and our internal team found it easy to take over.

Overall, a team we trust and plan to keep working with.

Project summary

We engaged GB Development Services to rebuild a slow, outdated web app and move it to a new framework. The work covered requirements, design, development, testing and launch support. Overall it was a 9-month engagement.

  • Overall Rating 4.5
  • Quality 5.0
  • Schedule 4.5
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
Web Development
Project Cost:
Less than $10,000
Project Duration:
Sep 2025 - Jun 2026
Business Type:
Information Technology
Location:
Perth, Australia

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Co-Founder & CTO at Crestview Tech, a Information Technology company based in Perth, 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?
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?
They had relevant experience in Information Technology 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 Information Technology 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?
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?
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?
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?
Definitely. We have already started talking about the next phase.

Easy to work with and very transparent on timelines and cost

Dan Morgan / Senior Engineering Manager | Jun 20, 2026

We were very happy with how this project went. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later. 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.

The Mobile App Development work has already made a noticeable difference — tasks that used to take hours now take minutes.

If you need a team that communicates well and delivers, they are a good choice.

Project summary

We engaged GB Development Services to rebuild our existing mobile app, which had poor reviews and frequent crashes. The work covered requirements, design, development, testing and launch support. The engagement ran for about 4 months.

  • Overall Rating 5.0
  • Quality 5.0
  • Schedule 5.0
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
Mobile App Development
Project Cost:
$150,000 to $499,999
Project Duration:
Jan 2026 - May 2026
Business Type:
Media & Entertainment
Location:
Columbus, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Senior Engineering Manager at Cobalt Studios, a Media & Entertainment company based in Columbus, 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?
We had tried to do this internally and it stalled. We needed specialists to rebuild our existing mobile app, which had poor reviews and frequent crashes.
What services did the company provide for your project?
Mainly Mobile App 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?
They had relevant experience in Media & Entertainment and their proposal was the clearest of the ones we received.
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?
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?
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?
We can now handle more volume without adding staff, which was the main goal.
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?
Definitely. We have already started talking about the next phase.

Great Experience With GB Development Services on Our Mobile App Development Project

Maria Nguyen / Co-Founder & CTO | May 29, 2026

GB Development Services 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. 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 launched on schedule and have not had any major issues since. If you need a team that communicates well and delivers, they are a good choice.

Project summary

We hired GB Development Services to rebuild our existing mobile app, which had poor reviews and frequent crashes. Their team handled planning, development and QA, with our product owner signing off each milestone. We worked together for around 3 months.

  • Overall Rating 4.5
  • Quality 4.0
  • Schedule 4.0
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
Mobile App Development
Project Cost:
$10,000 to $49,999
Project Duration:
Jan 2026 - Apr 2026
Business Type:
Healthcare
Location:
Nashville, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Co-Founder & CTO at Atlas Medical LLC, a Healthcare company based in Nashville, 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?
We needed to rebuild our existing mobile app, which had poor reviews and frequent crashes, 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, including planning, development, testing and launch support.
Why did you choose this company over other providers you considered?
They had relevant experience in Healthcare and their proposal was the clearest of the ones we received.
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?
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?
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.

Exceeded our expectations on quality and communication

Anna Richter / Founder | May 22, 2026

We were very happy with how this project went. 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.

Since launch, everything has been stable and our team has adapted to it quickly. Overall, a team we trust and plan to keep working with.

Project summary

Our company worked with GB Development Services to build the multiplayer features for our existing game. They worked alongside our in-house team, which mostly handled business requirements and testing. The project took roughly 4 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:
Nov 2025 - Mar 2026
Business Type:
Gaming & Gambling
Location:
Stuttgart, Germany

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Gaming & Gambling company based in Stuttgart, Germany. I'm the Founder and I oversaw the project from start to finish.
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 build the multiplayer features for our existing game.
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?
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?
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?
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?
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?
Definitely. We have already started talking about the next phase.

Great team to work with — professional, responsive and reliable

Nicole Foster / Owner | Apr 30, 2026

We were happy with the final result. They were upfront about what was realistic within our budget, which helped us prioritise the right features. 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.

Since launch, everything has been stable and our team has adapted to it quickly. Documentation at handover was a bit thin and we had to ask for more detail.

If you need a team that communicates well and delivers, they are a good choice.

Project summary

We partnered with GB Development Services to rebuild our existing mobile app, which had poor reviews and frequent crashes. Scope included discovery workshops, development in two-week sprints and a short support period after launch. The engagement ran for about 4 months.

  • Overall Rating 4.0
  • Quality 3.5
  • Schedule 4.0
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
Mobile App Development
Project Cost:
Less than $10,000
Project Duration:
Nov 2025 - Mar 2026
Business Type:
Advertising & Marketing
Location:
Minneapolis, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Advertising & Marketing company based in Minneapolis, USA. I'm the Owner and I oversaw the project from start to finish.
What specific problem or business challenge led you to hire this company?
Our existing setup was holding us back. We wanted to rebuild our existing mobile app, which had poor reviews and frequent crashes before our busy season.
What services did the company provide for your project?
Mobile App Development, including planning, development, testing and launch support.
Why did you choose this company over other providers you considered?
They had relevant experience in Advertising & Marketing 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 Advertising & Marketing 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?
Yes, on time and within budget.
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?
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?
Yes. They are a reliable Mobile App Development partner.

Delivered on time and stayed involved after launch

Arjun Kulkarni / Operations Manager | Apr 27, 2026

We were happy with the final result. 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. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later.

Feedback from our customers has been very positive so far. A couple of milestones slipped by a week or so, mostly around testing. If you need a team that communicates well and delivers, they are a good choice.

Project summary

GB Development Services was brought in to build a supply chain traceability prototype on a permissioned blockchain. They also took care of integrations with a couple of third-party tools we already used. We worked together for around 8 months.

  • Overall Rating 4.0
  • Quality 3.5
  • Schedule 4.0
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
Blockchain Development
Project Cost:
$50,000 to $149,999
Project Duration:
Jul 2025 - Mar 2026
Business Type:
Information Technology
Location:
Bengaluru, India

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Operations Manager at Oakline Software Pvt Ltd, a Information Technology company based in Bengaluru, India. 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 build a supply chain traceability prototype on a permissioned blockchain before our busy season.
What services did the company provide for your project?
Blockchain 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. GB Development Services asked the best questions and had good reviews from past clients.
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?
Yes, I've already recommended them to a couple of people I know.

Great Experience With GB Development Services on Our AI & Machine Learning Project

Kavya Kulkarni / Founder & CEO | Mar 03, 2026

GB Development Services did an excellent job for us. 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. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building.

It has made a real difference to how our team works day to day. We are already discussing the next phase with them.

Project summary

GB Development Services was brought in to build a demand forecasting model on top of our sales data. The project was split into milestones, with a working build shared at the end of each one. The engagement ran for about 7 months.

  • Overall Rating 4.5
  • Quality 4.5
  • Schedule 4.0
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
AI & Machine Learning
Project Cost:
$10,000 to $49,999
Project Duration:
Jul 2025 - Feb 2026
Business Type:
Mining & Metals
Location:
Mumbai, India

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Founder & CEO at Fairway Minerals Pvt Ltd. We operate in Mining & Metals and most of our customers are in and around Mumbai, India.
What specific problem or business challenge led you to hire this company?
Our existing setup was holding us back. We wanted to build a demand forecasting model on top of our sales data before our busy season.
What services did the company provide for your project?
AI & Machine Learning, plus QA and some consulting on how to structure the project.
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?
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?
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?
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?
Yes, I would recommend them and we plan to work with them again.
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