Payment integration services

Client feedback


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Our achievements

At Halo Lab, we excel in payment integration services, offering secure solutions that set us apart in the industry.

Our payment integration services cover the planning, design, development, integration, testing, management, and evolution of payment solutions. At Halo Lab, we adhere to the highest quality standards and offer premier payment gateway integration services to startups, software companies, and enterprises across 30+ industries.

4.9/5 Average Client’s Rating
Top 100 companies worldwide by Clutch
5 stars on GoodFirms
100% Job Success on Upwork
4.9/5 Average Client’s Rating
Top 100 companies worldwide by Clutch
5 stars on GoodFirms
100% Job Success on Upwork
4.9/5 Average Client’s Rating
Top 100 companies worldwide by Clutch
5 stars on GoodFirms
100% Job Success on Upwork
4.9/5 Average Client’s Rating
Top 100 companies worldwide by Clutch
5 stars on GoodFirms
100% Job Success on Upwork
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Our services

Our payment integration services ensure instant, secure payment solutions for businesses. From consulting to development and support, we provide comprehensive, tailored payment gateway integration services.

Strategic consulting

Our strategic consulting services help businesses design and implement effective payment integration strategies, ensuring easy, secure transactions across all platforms.

Payment app development

We specialize in payment app development, creating robust, user-friendly applications that facilitate smooth, secure payment processing for businesses of all sizes.

Financial software development

Our financial software development services deliver custom solutions that integrate payment gateways, ensuring efficient, reliable, and secure payment processing.

Software testing

Our software testing services rigorously evaluate payment systems, ensuring they meet the highest standards of security and performance and providing a seamless user experience.

Support & maintenance

We offer ongoing support and maintenance, ensuring your payment integration systems remain secure, updated, and fully functional, providing peace of mind for your business.

Why choose Halo Lab for payment integration services

A diverse team of 155 talented experts!
Total funding

Hard work and dedication of the Halo Lab team help our clients secure new successful investment deals.

Completed projects

With our exceptional approach to every project, we bring the dream projects of our clients to life.

Positive vibes

We aim to provide the perfect digital solutions for your business, making this process friendly and chill.


Business challenges are tough, but we have a proven record of elevating our partners to their next and best selves.


Kinetik Platform with over 3500+ Integrated Providers

We helped Kinetik in developing an app and a convenient analytics dashboard — by the end of 2022, they raised over $20M in funding.


The Leading Brand for Custom Esports Clothing Design

Halo Lab crafted a 3D Builder for Raven from scratch, helping them dominate the esports market with a custom ecommerce product.


Bookclub24 — #1 German Online Library for Book Collectors

By assisting Bookclub24 with full-stack development and branding, we propelled the company to attract book lovers worldwide.


$40 Million Raised by Mighty Buildings in Series B

We enhanced Mighty Buildings’ web portal and configurator. They have grown to 100+ employees and secured $100M in investment.

Payment integration services showcased in our portfolio

Our process

  • 00

Analysis and planning

Conducting thorough research and planning to understand client needs and market trends, laying the groundwork for successful payment integration.


  • Onboarding: Gathering project details from the client and sending a comprehensive questionnaire to understand their needs.
  • Problem research: Exploring client problems and needs by consulting stakeholders and researching relevant topics across multiple platforms.
  • Market research: Reviewing similar products and market statistics to understand niche metrics and identify key competitive features.
  • Customer profile: Defining customer pains, gains, and jobs to understand their needs and expectations, forming a detailed customer profile.


  • Value proposition: Defining how the product creates customer gains, alleviates pains, and delivers value through its features and services.
  • Moodboard: Gathering layout samples, typography, color palettes, and illustrations to align the vision for the product’s UI design.
  • Brainstorming: Generating ideas about branding, main features, and creating a complete user flow with UX/UI designers for optimal design.
  • Wireframes: Creating wireframes for main screens, refining concepts into solid structures, and organizing content efficiently.

Development and customization

Developing and customizing payment solutions to fit specific client requirements, ensuring seamless and efficient integration with existing systems.


  • Establishing development processes: Setting up daily syncs, weekly demos, and planning sessions to ensure a smooth development process and team alignment.
  • Team: Building a strong development team including developers, QA engineers, designers, and project managers to ensure efficient execution.
  • Sprint 0 deliverables: Aligning project goals, setting up the development environment, completing initial tasks, and demonstrating first results.
  • MVP development and release: Executing development sprints to build new features, testing, and preparing for the initial release of the MVP version.


  • Development research: Analyzing product requirements and wireframes to identify potential challenges and suggest cost-saving solutions.
  • UI finalization: Polishing wireframes and creating a finalized UI based on branding and style confirmed during the research phase.
  • Clickable prototype: Combining UI screens into a clickable app prototype using Figma, allowing for interactive demonstrations and feedback.
  • Proof of concept: Creating a pilot project to test design concepts, product requirements, and third-party API integrations for feasibility.

Testing and quality assurance

Testing payment systems rigorously to ensure they meet the highest standards of quality and security, providing a seamless user experience.


  • Test planning: Developing a comprehensive test plan that outlines test cases, scenarios, and criteria to ensure thorough coverage of the payment system.
  • Automated testing: Implementing automated tests to consistently verify system functionality, performance, and security during the development process.
  • Manual testing: Conducting detailed manual testing to identify any issues that automated tests might miss, ensuring a seamless user experience.
  • Usability testing: Performing usability tests to gather user feedback and ensure the payment system is intuitive and easy to navigate.

Quality assurance

  • Performance testing: Evaluating the system’s performance under various conditions to ensure it can handle high loads and perform efficiently.
  • Security testing: Executing rigorous security tests to identify and mitigate vulnerabilities, ensuring the payment system is secure from threats.
  • Bug fixing: Addressing any issues identified during testing and resolving bugs to enhance system stability and reliability before deployment.
  • Final quality review: Conducting a final quality review to ensure all aspects of the payment system meet the highest standards before going live.


Deploying the developed payment solutions smoothly, ensuring all systems are fully operational and integrated seamlessly with existing platforms.

Deployment preparation

  • Pre-release testing: Conducting extensive pre-release testing to ensure all systems are functioning correctly and fixing any critical issues.
  • Release planning: Creating a detailed release plan that outlines the steps for deploying the payment system and addressing potential issues.
  • Environment setup: Setting up the production environment to ensure it is ready for deployment, including necessary configurations and security measures.
  • Backup creation: Creating backups of all critical data and systems to ensure that recovery is possible in case of any deployment issues.

Deployment execution

  • System deployment: Deploying the payment system to the production environment, ensuring all components are correctly installed and configured.
  • Post-deployment testing: Performing post-deployment testing to verify that the payment system is working correctly in the production environment.
  • Monitoring setup: Setting up monitoring tools to continuously track the performance and stability of the payment system after deployment.
  • Feedback collection: Gathering feedback from initial users to identify any issues and make necessary adjustments to improve the system.

Ongoing support and maintenance

Providing ongoing support and maintenance to keep payment systems secure, updated, and fully functional, ensuring long-term reliability and performance.


  • User feedback: Collecting and analyzing user feedback to identify issues and areas for improvement in the payment system.
  • Issue resolution: Promptly addressing and resolving any issues reported by users to maintain system functionality and user satisfaction.
  • Regular updates: Providing regular updates to enhance system features, security, and performance based on user needs and technological advancements.
  • Technical support: Offering ongoing technical support to assist users with any questions or problems they encounter while using the payment system.


  • System monitoring: Continuously monitoring the system to detect and address potential issues before they affect users.
  • Security patches: Applying security patches regularly to protect the payment system from emerging threats and vulnerabilities.
  • Performance optimization: Regularly optimizing system performance to ensure it remains efficient and can handle increasing user loads.
  • Documentation updates: Maintaining and updating documentation to reflect any changes or improvements made to the payment system, ensuring clarity for users and developers.
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We’ve helped hundreds of partners, ranging from startups to medium-sized businesses to achieve their goals. And stellar feedback — is our reward!

Clutch average based on 70+ reviews. All chances are you’ll be impressed too.
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The client has learned to trust Halo Lab, thanks to their significant knowledge in UI/UX design. The vendor has provided valuable feedback by always being readily available for communication. Moreover, they have a satisfying project management process that makes their process smooth and efficient.

Atif Hussain avatar
Atif Hussain
Co-Founder at Kinetik
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The client is proud of Halo Lab's work, which their customers have praised. They lead a communicative process to enable the team to reach out to them at any time. The client also praises their designs and suggestions, which help improve their services.

Dimitri Lubaschevski avatar
Dimitri Lubaschevski
CEO, DAS24 Services
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Their skills were awesome — they took what I said and made it real. The designs ended up helping the internal stakeholders raise funds. The specialists maintained excellent project management skills throughout the process.

Farah Allen avatar
Farah Allen
Founder & CEO at Labz
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The client was satisfied with Halo Lab’s high-quality work. They made the designs better and delivered them promptly. The team was easy to work with; they communicated on Slack and provided updates on the progress every day. Moreover, they went beyond expectations and never missed a deadline.

David Matthews avatar
David Matthews
CEO, Dotcal
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Halo Lab’s work has received positive feedback from internal and external stakeholders. They excelled at project management through Notion, going above and beyond to ensure timely delivery, and they communicated effectively through Slack and email. Their branding skills stood out.

Greg Wheeler avatar
Greg Wheeler
Co-Founder & CEO, Ditto
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Thanks to Halo Lab's efforts, the client increased their conversion rates on various funnels. Despite the complex business requirements, the team managed the project well and yielded positive outcomes. Overall, their communication and attention to detail impressed the client.

Jeff Voss avatar
Jeff Voss
CTO, Qualle
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Halo Lab successfully delivered a product design that has proved popular with users. The team’s professionalism and creative abilities come at a very reasonable price. Their motivation is admirable, and their organization makes for a smooth workflow.

Bogdan Suchyk avatar
Bogdan Suchyk
Founder, Mobalytics
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Halo Lab provided high-quality designs at a good value, and the client was happy with the number of frontend routes they developed. The team excelled at project management by having no delays and being adaptable to changes. Overall, they did an excellent job meeting the client's needs.

Trace Sauter avatar
Trace Sauter
Director, BrandEmPower
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Halo Lab delivered the designs on time, but the client has yet to implement them in their platform, although they’re happy with the deliverables. They had a user-focused design process. Their team provided constant updates and recorded their processes on Loom to keep the client abreast of progress.

Moe Hadizadeh avatar
Moe Hadizadeh
Developer at Abscraft Inc
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Halo Lab delivered all of the agreed-upon deliverables, and they even went above and beyond to further help the client. They communicated through video calls and used project management tools for synchronization. The team truly cared about the project and was always very responsive and organized.

Conor Deegan avatar
Conor Deegan
CTO at Pool Data

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Our clients say

The site developed by Halo Lab projected a very premium experience, successfully delivering the client’s messaging to customers. Despite external challenges, the team’s performance was exceptional.
Aaron Nwabuoku avatar
Aaron Nwabuoku
Founder, ChatKitty
Thanks to Halo Lab's work, the client scored 95 points on the PageSpeed insights test and increased their CR by 7.5%. They frequently communicated via Slack and Google Meet, ensuring an effective workflow.
Viktor Rovkach avatar
Viktor Rovkach
Brand Manager at felyx
The client is thrilled with the new site and excited to deploy it soon. Halo Lab manages tasks well and communicates regularly to ensure both sides are always on the same page and all of the client’s needs are addressed promptly.
Rahil Sachak Patwa avatar
Rahil Sachak Patwa
Founder, TutorChase