DeviQA
  1. Home
  2. >
  3. Industries
  4. >
  5. Payment app testing services

Payment app testing services

Tested for speed. Proven for security. Ready for scale.

Backed by 15+ years in fintech QA, we ensure every payment is fast, secure, and flawlessly executed.

Picture

Trusted by

Our solutions for your payment app testing challenges

Payment apps can’t afford errors or downtime. DeviQA ensures payment apps run flawlessly – secure, compliant, and reliable across every transaction and platform.

Transaction failures and slow payments

Challenge

Even a 1-second delay can cut satisfaction by 16%.

Solution

End-to-end payment flow testing ensures transactions are instant, accurate, and secure.

Security and compliance gaps

Challenge

Over 45% of fintech apps fail PCI DSS or GDPR checks.

Solution

We perform full security and compliance testing for PCI DSS, PSD2, and OWASP standards.

API and gateway instability

Challenge

One failed API can disrupt all transactions.

Solution

We validate all integrations to guarantee reliability and seamless data flow.

Load and performance issues

Challenge

Peak loads often cause latency above 500 ms.

Solution

We stress-test systems to handle high volumes without downtime.

Device fragmentation

Challenge

Payment apps must run flawlessly across devices and OS versions.

Solution

Multi-device and cross-platform testing ensure smooth performance everywhere.

Types of payment apps we test

Whether it’s P2P, crypto, or cross-border payments, DeviQA makes every transaction smooth, fast, and regulation-ready.

Mobile wallets

Apple Pay, Google Pay, PayPal, and other digital wallets.

Peer-to-Peer (P2P) apps

Real-time money transfers between users.

Banking & neobank apps

End-to-end transaction and account management testing.

E-commerce payment solutions

Checkout, refunds, and multi-currency validation.

Crypto payment platforms

Wallet connectivity, transaction verification, and blockchain integrity.

Billing & subscription systems

Recurring payments, invoicing, and error handling.

POS & contactless solutions

NFC, QR, and in-store payment reliability.

Cross-border & remittance apps

Multi-currency conversion and compliance assurance.

gradient

The scope of our payment app testing services

We provide end-to-end payment app testing services to ensure your software delivers exceptional quality at every level.

Case studies

Partner with us:
see the difference

See all stories

Global healthcare giant

Web app testing
Test automation
API testing
Dedicated QA team
  • 90%

    Test coverage

  • 1.6k+

    Test cases created

  • X18

    Faster regression testing run

Read customer story

The first modern real estate platform

Web app testing
Test automation
E2E testing
Load testing
Mobile testing
+2
  • 85%

    Test coverage

  • 2k+

    Test cases created

  • 2.5x

    Faster regression testing run

Read customer story

Dental practice platform

Web app testing
API testing
Dedicated QA team
Mobile testing
+2
  • 95%

    Test coverage

  • 5k+

    Test cases created

  • 3k+

    Number of critical bugs logged

Read customer story

Solution for managing payments

Web app testing
Dedicated QA team
DB testing
API testing
Performance testing
  • 12

    Years of cooperation

  • 100%

    Covered performance

  • 2x

    Faster regression testing time

Read customer story

Booking system for tours and attractions

Web app testing
Test automation
Mobile testing
DB testing
Dedicated QA team
  • 90%

    Test coverage

  • 3.2k+

    Automation test scripts created

  • 1-2h

    Time of regression

Read customer story

Experience the DeviQA difference

From initial consultation to full-scale QA implementation, we deliver results.

DeviQA’s AI advantage

At DeviQA, we use AI to make testing smarter and simpler. Our ecosystem is built to deliver faster, smarter, and more cost-efficient results — so your team can do more in less time.

card0

AI-powered IDE assistant

Reduces test script writing time

card1

QA companion

Provides suggestions for test optimization and addresses gaps

card2

Automated code review

Flags unused variables, improper loops, and other common errors

card3

AI for API testing in Postman

Streamlines API test case creation and response validation

Features

Test case creation

Code review

Exploratory planning

Log analysis

without AI

6 hrs

3 hrs

2 hrs

2 hrs

with DeviQA AI

4 hrs (33% saved)

2 hrs (33% saved)

45 min (60% saved)

1 hr (50% saved)

Collaboration on your terms

Backed by 15+ years of expertise, DeviQA offers three flexible models for payment application testing services to fit your project’s needs, timeline, and budget.

Staff augmentation

Boost your in-house QA with experienced payment testers.

Advantages:

  • Quick access to skilled engineers

  • Easy integration into your workflows

  • Fast onboarding for urgent deadlines

Best for:

Teams needing extra QA capacity or niche expertise.

Get started

Dedicated QA team

A full-time QA team focused entirely on your payment app.

Advantages:

  • Deep knowledge of your product and compliance needs

  • Continuous coverage and faster releases

  • Scalable as your business grows

Best for:

Ongoing QA support for long-term payment platforms.

Get started

Project-based outsourcing

We handle testing end-to-end, from planning to delivery.

Advantages:

  • Clear scope and deliverables

  • Minimal management effort

  • Guaranteed compliance and performance

Best for:

Companies wanting a complete, hands-off QA solution.

Get started

Why choose us for payment system testing?

Over 500,000 project man-days successfully delivered.

We take full accountability for our work.

A range of value-added services at no extra cost.

Free test trial. Try us before making any payment.

Our engineers are senior testers with strong autonomy and self-starting ability.

With a 96% retention rate, we offer stable teams, compared to the industry average of 80%.

Extensive testing lab with a wide range of environments, platforms, and devices.

Access to a technology community of over 1000 QA engineers and experts.

Payment app testing that meets the standards. And exceeds expectations.

Our approach to payment application testing

A structured, six-step QA process that secures every transaction and keeps your payment app fast, compliant, and reliable.

01

Analysis & risk assessment

We review payment flows and compliance needs to identify critical testing areas.

02

Test strategy design

A tailored QA plan covering functionality, performance, security, and integrations.

03

Test environment setup

Real-world conditions simulated across devices, networks, and regions.

04

Functional & integration testing

End-to-end validation of transactions, refunds, and API communication.

05

Security & compliance testing

Thorough checks for PCI DSS, PSD2, and GDPR compliance.

06

Performance & regression testing

Load and regression testing ensure stability, speed, and reliability.

Here’s what people are saying
about DeviQA

26 reviews

32 reviews

9 reviews

Review

It was so easy to integrate your people with us and we didn't have any problems.

Author

Janosch Greber

VP of engineering at RealTyme

DeviQA helped develop a cybersecurity software platform. Complex automated scenarios test REST APIs through a Faraday library. An SDK application works with Azure, Google Cloud, Docker, and LXC containers.

Yuval Or

Yuval Or

QA manager at Mimecast

Review

DeviQA has always brought us really high quality candidates for us to be able to seamlessly mesh into our team.

Author

Danny He

CEO and founder at Soapbox

DeviQA provides software QA automation engineering support to a QC and QA company. Their work includes sandbox testing, QA, testing automation, DevOps support, and TechOps support.

Alex Ohoussou

Alex Ohoussou

Head of QA & techOPs at QIMA

Review

You guys have always been genuine, flexible and personable.

Author

Ryan Austin

CEO and founder at Cognota

DeviQA has provided application testing services for an HR tech company. The team has managed feature, smoke, and regression automation tests and offered test reports.

Mia Bunjac

Mia Bunjac

QA chapter lead at Renhead Technology

Review

In fact, they have been a part of our success story, helping us grow from six workers 11 years ago to about 1200 workers now.

Author

Raanan Tauber

QA manager at Tipalti

DeviQA provides automatic testing with continuous integration for native and hybrid mobile apps.

Giurea Renato Gabriel P.F.A.

Giurea Renato Gabriel P.F.A.

CTO at Impaktsoft Projekt S.R.L.

Review

They can take my lack of knowledge and I can trust that they will be able to produce something of value.

Author

Ray Alde

Co-founder & cto at Arklign

DeviQA provides QA and testing resources on an ongoing basis. They evaluate architectures and offer both manual and automated testing. The client has also utilized their on-demand developers.

Review

To me, that's above and beyond, I did not expect that to be so smooth and so easy.

Author

Mark Levine

Chief product officer at CYDEF

DeviQA is a dedicated vendor that assists with manual and automated testing on an ongoing basis. They're also overseeing other development projects and supervising the testing portion of those.

Review

They know what they're doing because the people that they send to us are quality people.

Author

Charles Chase

Chief technology officer at Returnmates

DeviQA provided application testing services for an audio editing platform. The team was responsible for continuously testing the UI and functionality of the platform via an automated testing framework.

Review

There is also very good follow up on the engineers and the job they're doing.

Author

Olivier Mayot

Chief technology officer at SimpliField

DeviQA serves as the process improvement partner to a diabetes care and solutions company. They helped scale the client's automated testing and are now working on improving their manual testing framework.

Collaboration process overview

  • 01

    Initial contact. We start by understanding your testing needs and aligning them with your goals.

  • 02

    Assessment. Our experts analyze your current process and propose a tailored improvement plan.

  • 03

    PoC. Try a free proof of concept to see our capabilities in action.

  • 04

    Trial & evaluation. We conduct a trial phase and review the results together.

  • 05

    Contract & QA implementation. Once satisfied, we sign the contract and begin full-scale QA.

  • 06

    Flexible partnership. DeviQA offers scalable solutions to adapt to your business needs.

Ready to connect?

Just fill in your name and email, and we’ll get back to you with available slots

Questions & answers

Payment app testing verifies that every transaction is processed accurately, securely, and in compliance with financial regulations. It prevents failed payments, data leaks, and revenue loss, all crucial for maintaining user trust and business reputation.
Payment system testing focuses on validating transaction integrity, multi-gateway integrations, and compliance (e.g., PCI DSS, PSD2), while standard testing mainly checks functionality and usability. It demands domain expertise and security precision.
Our QA process includes functional, performance, security, compliance, and integration testing, ensuring flawless payment flows, real-time processing, and data protection.
We simulate real transaction scenarios across APIs, gateways, and external services to verify accuracy, response time, and error handling under real-world conditions.
We conduct dedicated checks for PCI DSS, PSD2, and GDPR requirements, ensuring secure data transmission, encrypted storage, and proper authentication workflows.
Yes. We perform extensive load and stress testing to ensure your app or payment system remains stable and responsive even during peak transaction periods.
Continuous testing is recommended, especially after every code update, API change, or new integration, to prevent transaction errors and ensure compliance.