GammaStack is a leading provider of iGaming software solutions that help businesses launch, manage, and scale high-performance platforms for online casino, sports betting, lottery, crypto gaming, and sweepstakes casinos.
With 600+ clients across the globe, we offer both custom-built and ready-to-launch turnkey iGaming platforms tailored to your business goals.
GammaCasino – Online casino software with certified RNG, multi-provider game integrations, jackpots, and gamification.
GammaBet – Sports betting software with real-time odds, live betting, risk management, payment integrations, and PAM.
GammaSweep – Turnkey sweepstakes casino platform, launched in just 5 weeks with pre-integrated features and compliance support.
GammaLottery – Custom lottery software with global game formats, ticket management, and multiple contest pools.
GammaSlot – Bespoke and ready-made slot games with custom mechanics, immersive UI/UX, and bonus systems.
🚀 Why Choose GammaStack?
Turnkey & White Label iGaming Platforms
100% Custom iGaming Software Development
Complete Source Code & IP Ownership
Low-to-No GGR Revenue Share Models
Mobile-Responsive & Multi-Currency Support
Seamless 3rd-Party API Integrations
Post-Launch Maintenance & Marketing Support
âś… Compliance & Certifications: Our iGaming software is certified by industry bodies like GLI, BMM Testlabs, and ISO, ensuring full compliance for regulated markets across Europe, Asia, and North America.
Whether you're a startup or an enterprise operator, GammaStack provides scalable, secure, and future-ready iGaming solutions that give you a competitive edge and faster market entry.
"Their engineering staff always showed good character."
May 19, 2025
CEO, iGaming Co
Anonymous
Gaming
Costa Rica
11-50 Employees
Online Review
GammaStack was hired to develop a custom crypto casino from scratch for an iGaming company. The team was tasked with building the platform and creating seven original games.
GammaStack successfully completed about 70% of the codebase, and some parts of the platform worked. However, the client was not satisfied with the quality of the code, and the project management was very poor. Overall, the team was friendly, but they failed to deliver what was expected.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the CEO of a gaming company
Describe what your company does in a single sentence.
iGaming platform
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire GammaStack to accomplish?
Build the complete casino
Build 7 original games
SOLUTION
How did you find GammaStack?
Online Search
Why did you select GammaStack over others?
Pricing fit our budget
Referred to me
How many teammates from GammaStack were assigned to this project?
6-10 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
We hired Gammastack to build our custom crypto casino from scratch. It includes 7 original games like Plinko, Hilo, Dice.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
About 70% of the codebase was completed. It took us about 2 months to finalize the project after handover, so you could say they did make some progress for us - although we did need to re-write most of the code. Many parts of the platform did work, such as changing profile picture, chat messaging, placing bets. The problem was the inconsistencies - the code was laggy and slow even when it did work.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Project Management was very poor.
They promised deliver in 3 months, but its been over 9 months now. We had weekly meetings and communicated all the feedback we expected to be implemented, but each week only about half the feedback would be implemented. There were some feedbacks which weren't implemented for weeks and weeks and were forgotten about unless we chased them up on it. As delays piled up, they actually removed devs from the team instead of adding devs, because they said they needed to move on to other projects. So the project got slower and slower until eventually it was clear that they had no intention of finalizing the project. They were dragging our feet to make us leave.
What was your primary form of communication with GammaStack?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
Their engineering staff always showed good character - friendly people who always said yes, but they couldn't actually deliver what we asked.
Are there any areas for improvement or something GammaStack could have done differently?
Yes, there are a number of areas I'd improve: 1) Improve Code Quality and Performance The code they wrote was not performant. It was very slow and laggy. We had to re-write the page routing for all pages to speed it up to a normal speed. We are still finding and fixing bugs in the code to this day.
2) Fix Faulty Code
Gammastack wrote us code for 7 Original Games. 4/7 games do not work as intended - the RTP "Return to Player" doesn't work. There are literally parts of the code missing which we are now fixing. We asked them for a call to help us, but they said they won't unlesss we pay them more money (!).
3) Frontend UI UX
We designed all our UI UX, but Gammastacks frontend engineers kept getting it wrong. It might be a skill or cultural issue, but they literally couldn't copy our designs. They kept changing the fonts, font sizes, colors. The scaling and dimensions were all wrong. We wasted so much time pointing out things that could've been seen by anyone who bothered to make the effort to copy the designs perfectly.
4) Deadline management
We chose Gammastack because they promised a 3 month deliver. It took 9 months and every single month they told us delivery was just around the corner
5) Account Management Team
I'd like to highlight Daisy as a big point of potential improvement. She was our account manager, but actually her role was to block us as much as possible. She blocked pretty much every one of my requests for escalation. She was useless and did not help at all. If she was able to put me in contact with a decision maker, it might have avoided the mess we are in now. 6) Misleading Sales Process The Sales team is based in Europe, Dev team is based in India. Its like working with two totally different companies. This is obviously intentionally done and highlights the deception happening at Gammstack.
RATINGS
1.0
"Gammastack almost killed my startup."
Quality
0.5
Service & Deliverables
"We had to re-write all the code"
Schedule
0.5
On time / deadlines
"3 months took 9 months"
Cost
0.5
Value / within estimates
"We overpaid massively"
Willing to Refer
0.5
NPS
"Not only did they not complete the project, the majority of the code they delivered was faulty and had to be re-written. Total waste of time and money
Gaming Software Dev for Gaming Company
Custom Software Development
Confidential
Feb. - Apr. 2023
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"I was amazed by their ability to turn my vision into reality."
Jul 7, 2023
Technical Head, Gaming Company
Emma Joseph
Verified
Gaming
Denver, Colorado
501-1,000 Employees
Online Review
Verified
A gaming company hired GammaStack to develop bespoke iGaming software. The team was responsible for integrating trending features, UX/UI design, and adding secure payment getaways.
GammaStack delivered a budget-friendly solution on time. The service provider kept the client updated throughout the partnership and ensured that the final product aligned with the client's goals. The team integrated the latest technologies and trends to create an innovative solution.Â
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Technical Head of a gaming company
Describe what your company does in a single sentence.
We are iGaming company with 15+ years of experience.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire GammaStack to accomplish?
iGaming software development
SOLUTION
How did you find GammaStack?
Online Search
Why did you select GammaStack over others?
High ratings
Pricing fit our budget
Great culture fit
Good value for cost
Company values aligned
How many teammates from GammaStack were assigned to this project?
6-10 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
The team of GammaStack delivered us a feature-rich iGaming software development solution with integrations of our choice. They built a fully bespoke solution matching the needs of our business. The software covered all the trending features, engaging UI/UX. safe payment gateways and much more.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
The project was delivered on time.Â
Budget-friendly solutionÂ
No hidden costsÂ
Quick delivery of workÂ
On-time responses by the team
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Throughout the development process, they kept me updated and involved, making sure that the final product aligned with my goals.
What was your primary form of communication with GammaStack?
Virtual Meeting
What did you find most impressive or unique about this company?
GammaStack is a game-changer in the iGaming software development industry. I was amazed by their ability to turn my vision into reality. Their team has a deep understanding of the latest technologies and trends, which they skillfully applied to create an innovative and user-friendly software solution for my business.
Are there any areas for improvement or something GammaStack could have done differently?
No
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
"I am extremely satisfied with GammaStack's work and wouldn't hesitate to collaborate with them in the future.
Custom Software Dev for Sports Betting Software Provider
Custom Software DevelopmentIT Strategy ConsultingUX/UI DesignWeb DesignWeb Development
Confidential
Jan. - Apr. 2023
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"Their ability to translate my ideas into functional, user-friendly sports betting software was remarkable."
Jun 14, 2023
Head, Sports Betting Software Provider
Jessica M. Mullens
Other industries
Wilmington, Delaware
11-50 Employees
Online Review
GammaStack developed sports betting software for a sports betting software provider. They designed the platform's UI/UX, built the front- and backend, integrated sports data feeds, and added payment gateways.
GammaStack helped the client boost their user engagement and conversion rates. They also improved the client's scalability and performance. Moreover, the client lauded the vendor's responsiveness to issues, attentiveness to details, valuable suggestions, timely delivery, and proactive approach.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Head of a sports betting software provider.
Describe what your company does in a single sentence.
We are in the sports betting industry and provide ready-to-launch software.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire GammaStack to accomplish?
iGaming Software Development
iGaming Solution
Custom Sports Betting Software Development
SOLUTION
How did you find GammaStack?
Referral
Why did you select GammaStack over others?
Pricing fit our budget
Great culture fit
Good value for cost
Referred to me
Company values aligned
How many teammates from GammaStack were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
GammaStack typically involves a collaborative process with clients to create a customized platform tailored to their specific requirements. These are some factors with which GammaStack works closely:Â
Requirement AnalysisÂ
Design and UI/UXÂ
Front-end DevelopmentÂ
Back-end DevelopmentÂ
Integration of Sports Data FeedsÂ
Betting Markets and Types
Payment Gateway IntegrationÂ
Admin Dashboard and ReportingÂ
Testing and Quality AssuranceÂ
Deployment and Maintenance
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Increased our user engagement and higher conversion ratesÂ
Better in scalability and performance
Describe their project management. Did they deliver items on time? How did they respond to your needs?
GammaStack's team displayed a deep understanding of my needs and goals. They patiently listened to my requirements, asked relevant questions, and provided valuable suggestions to enhance my vision. Their attention to detail and proactive approach ensured that the final product exceeded my expectations. Their ability to translate my ideas into functional, user-friendly sports betting software was remarkable. They delivered my project on time.
What was your primary form of communication with GammaStack?
Virtual Meeting
What did you find most impressive or unique about this company?
Even after the project was completed, they continued to be responsive and attentive to any issues or updates I required.
Are there any areas for improvement or something GammaStack could have done differently?
No, GammaStack is good in every aspect. I am very impressed with their work.
RATINGS
5.0
"I am really happy with what they have delivered to me as a final project. I would recommend anyone to count GammaStack as the first choice for the iGaming business."
Quality
5.0
Service & Deliverables
"Best quality of service as I expected."
Schedule
5.0
On time / deadlines
"Everything is on-time"
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
"I wholeheartedly recommend GammaStack to anyone seeking reliable and high-quality iGaming software development services.
Showing 1-3 of
3 Reviews
Locations (1)
6th Floor, Crystal IT Park, Indore 452014 (M.P.), IndiaIndore, India452020
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