QA Services for
Software Development Companies

Ensure high quality of your solutions with software testing

QATestLab offers manual and automated testing services, as well as writing test documentation, QA management and processes optimization for various industries and types of software.

Companies
15+

years in software testing

250+

QA engineers
(Junior, Middle, Senior)

350+

real testing devices

30%

of projects start within 1 day*

*after signing the documents

Why QATestLab

Experienced QA engineers

Our QA experts have accomplished 3000+ projects for various industries, tested many types of software, and can join your project at any stage of the SDLC.

Extensive infrastructure

We have a large pool of 350+ real testing devices (mobile phones, tablets, PCs, AR/VR devices) and experience in working with 40+ testing tools.

Quick start

Most of our projects start with just a few days’ advance notice; 30% of projects begin within one day after signing the documents.

Writing test documentation

We can write all test documentation per your request (test plan, test cases, checklists, etc.) and always provide timely well-structured bug reports.

QA processes optimization

Our senior QA experts and project managers can assist with test processes management and optimization to make QA in the company as efficient as possible.

Transparency

Before the project begins, we can provide you with clear free estimates of time and money to be spent on testing. We also send timely well-structured QA reports.

What we test

developWebsites

Websites

developAdvanced

Advanced web services and portals

developCMS

CMS and online website creation tools

developMobile

Mobile applications

developDistributed

Distributed systems

developB2B

B2B systems

developWeb

Web applications

developCloud

Cloud solutions

developGames

Mobile, web, and desktop games

developDesktop

Desktop applications

developComplex

Complex CRM, ERP, and EMS systems

developIoT

IoT and smart software

How we test

Functional testing

We check if an application works correctly based on the requirements.

Usability testing

We assess if an app is convenient, user-friendly, and easy-to-use.

UI testing

We validate the proper display and work of the graphic user interface (GUI) elements in an app.

Integration and API testing

We test integration between different modules of an app and between an app and third-party solutions (at this stage we thoroughly check APIs).

Performance testing

We test the app's speed, reaction to load from many simultaneous users and requests, and other performance aspects.

Compatibility testing

We check how an app works on different devices / browsers and its synchronization between devices / other platforms.

Security testing

We assess an app’s security level by following the OWASP criteria and methodology.

Regression testing

We check if fixing the discovered bugs caused any negative effect on the existing features and functionality of an app.

Stages of testing

stage of testing

QA during different SDLC stages

Requirements analysis stage
  • analyzing and forecasting risks
  • preventing errors in functional and non-functional requirements
  • preparing a high-level test plan
  • determining the necessary types of testing
  • developing test methodology
Design stage
  • analyzing the time needed for testing
  • confirming that the architecture satisfies all non-functional requirements
  • analyzing / preparing a data flow diagram and documentation for it
  • verifying entity relationship and workflow process diagrams + user stories
  • verifying compliance of the specification with design layouts and UIs
  • preparing a low-level test plan
Development stage
  • QA procedures for the finished prototype
  • unit testing
  • creating a list of test cases
  • designing Behavior Driven Development cases
  • preparing the test environment
Testing stage
  • preparing test documentation
  • designing metrics to cover functional requirements with tests
  • conducting comprehensive product testing
  • testing non-functional requirements
  • confirming that all discovered bugs were verified and fixed
  • participating in UAT testing
  • preparing the final test report
Implementation and post-production stage
  • preparing a manual with user cases and user stories
  • preparing a report with risks analysis, missed requirements / defects, and suggestions on quality improvements
  • analyzing and forecasting risks
  • preventing errors in functional and non-functional requirements
  • preparing a high-level test plan
  • determining the necessary types of testing
  • developing test methodology
  • analyzing the time needed for testing
  • confirming that the architecture satisfies all non-functional requirements
  • analyzing / preparing a data flow diagram and documentation for it
  • verifying entity relationship and workflow process diagrams + user stories
  • verifying compliance of the specification with design layouts and UIs
  • preparing a low-level test plan
  • QA procedures for the finished prototype
  • unit testing
  • creating a list of test cases
  • designing Behavior Driven Development cases
  • preparing the test environment
  • preparing test documentation
  • designing metrics to cover functional requirements with tests
  • conducting comprehensive product testing
  • testing non-functional requirements
  • confirming that all discovered bugs were verified and fixed
  • participating in UAT testing
  • preparing the final test report
  • preparing a manual with user cases and user stories
  • preparing a report with risks analysis, missed requirements / defects, and suggestions on quality improvements
what we deliver

Case studies

Marblewire Trellis: Training evaluation software
Offshore outsourcing solutions website
EMR (Electronic Medical Records) System: Mobile an

Find more Case studies here.

Testimonials