Sao Khuê 2025Ranked #1 software developer in Vietnam on Clutch - 4.9/5 from 50+ verified reviews.See the proof

QA testing services that stop regressions reaching production

QA testing services cover two jobs: catching defects before release, and building the automation that keeps catching them. InApps embeds QA engineers in your sprints, builds the regression suite in Playwright or Cypress, and gates every merge on it. First engineer in two to four weeks.

750+projects delivered
10+years shipping software
4.9/5average Clutch rating
15+countries served
InApps engineers at work in the open-plan office in Ho Chi Minh City

Trusted by engineering teams across 15+ countries - from startups to Fortune 500.

KFC Jollibee Prudential Techcombank Lotte MM Mega Market Fahasa ADM WorkPac Future Processing HVS Annam Pegas Baiond Fram Simban TS SG
Common challenges

Every team eventually ships faster than its test suite can keep up

Six failure modes we hear on almost every first call. QA testing services exist to remove all six, and none of them is fixed by adding one more manual tester.

01

A regression suite nobody has maintained since the engineer who wrote it left. It fails on green builds, so the team learned to ignore red.

02

Two weeks of manual regression before every release. The date moves, the testing does not shrink, and the last day is always a gamble.

03

Browser and device bugs found by customers, because nobody owns a matrix and nobody has the hardware to test one.

04

Load never tested until the campaign that breaks it. The first real traffic spike doubles as the first performance test.

05

QA bolted onto the end of the sprint. Defects surface when the fix costs most and there is no room left to make it.

06

Security scanning that happens once a year for an audit, rather than once per commit where it would change a decision.

Service overview

What QA testing services actually cover

Shipping every week with no automated coverage?

Testing finds the defect. QA stops the next one arriving

QA testing services are the outsourced function that verifies software works before your customers do. In practice it is four things: a written test strategy, an automated regression suite, manual exploratory testing where automation is the wrong tool, and the pipeline work that runs all of it on every commit.

Software testing services and QA services get sold as the same thing. They are not. Testing finds defects in what already exists. QA changes the process so fewer arrive: entry and exit criteria, definition of done, bug triage, release readiness. We do both, because a test suite bolted onto a broken process just reports the same defects faster.

Your repository, your pipeline, your ticket tracker
Suite handed over documented, never held hostage
Coverage and escape rate reported per release, not per quarter
QA AT THE END QA Build defects, all at once QA IN THE SPRINT Build and test together defects, one at a time, while the fix is cheap
Coverage

Four testing layers, scoped to the gap rather than to a package

Most teams need two of these four. We will tell you which two after reading your defect history, and we will not quote you the other two to pad the number.

Functional and regression

The suite that runs on every merge and blocks the ones that break a critical path.

  • End-to-end web flows in Playwright or Cypress
  • Native and hybrid mobile in Appium or Detox
  • Browser and device matrix, agreed with you up front
  • Manual exploratory where automation is the wrong tool
  • Accessibility checks against WCAG 2.2 AA

Performance and load

Finding the ceiling on a Tuesday, rather than during your campaign.

  • Load and stress profiles in k6 or JMeter
  • Soak tests for memory and connection leaks
  • Database and query profiling under real concurrency
  • A capacity number you can put in a capacity plan

API and integration

Where most of the defects actually are, and where the UI suite will never find them.

  • Contract tests in Postman and Newman, or REST Assured
  • Third-party and webhook failure paths
  • Auth, rate-limit and retry behaviour
  • Data integrity across services

Security and compliance

Scanned on every commit, not once a year for an auditor.

  • SAST and dependency scanning inside the pipeline
  • OWASP Top 10 checks against staging
  • Access control and session handling review
  • Evidence trail for ISO 27001:2022 and SOC 2 reviews
Test automation

Test automation services that outlive the engineer who wrote them

Most automation projects do not fail at the build. They fail at month nine, when nobody left can maintain them. Four decisions decide which way yours goes.

Built on a stack you can hire for

Playwright for web by default. Cypress where your team already knows it, Appium for mobile. We pick what you can staff after we leave, not what we happen to prefer.

In the pipeline from week two

The suite runs on every pull request from the first ten tests onward, not once the build is finished. A change that breaks a critical path does not merge.

Flaky tests treated as bugs

A test that fails at random is worse than no test, because it teaches everyone to ignore red. We quarantine, fix inside 24 hours, and report flake rate as a number you can see.

Yours at the end of it

Page objects, fixtures, a written runbook and two handover sessions with your engineers. Adding a test should never require a call with us.

Engagement models

Three ways to outsource QA, and when each one is the right call

QA outsourcing usually fails because the model was wrong for the team, not because the engineers were. The choice turns on how much of the quality function you want to own.

Three QA outsourcing models compared: an embedded QA engineer, a dedicated QA pod, and a project-based audit
 Embedded QA engineerDedicated QA podProject-based audit
Right whenYou have a team and no QA function at allSeveral squads, and quality is drifting between themYou need one honest answer, not a standing function
Team sizeOne to two engineersThree to six, with a QA leadOne to two, fixed window
Who directs the workYour engineering managerOur QA lead, against your prioritiesScope agreed before anyone starts
What you get backTests in your repository, from week twoA suite plus quality metrics across productsReport, ranked risk list, remediation plan
CommitmentRolling, two weeks' notice either wayQuarterlyFixed scope with a fixed end date
Typical triggerRelease cadence outgrew manual testingA portfolio with no shared quality barPre-launch, pre-funding or post-incident
If the answer is really headcount, say so and we will point you sideways. A QA engineer you want on your own org chart long-term is IT staff augmentation, not QA outsourcing. Six or more people across several products is an offshore development center. Both are cheaper than this page for those shapes, and we would rather tell you on the first call.
Why InApps

Outsourced QA, an in-house hire, or a manual-only vendor

QA testing services from InApps compared with hiring an in-house QA engineer and with a manual-only testing vendor
CriterionInAppsIn-house QA hireManual-only vendor
Time to first test running2–4 weeks3–4 months to hireFast, but nothing persists
Automated regression suiteBuilt, maintained and handed overDepends entirely who you hireNot offered
Performance and load testingIn scope, k6 or JMeterRarely one person's skill setNot offered
Testing inside CI/CDEvery pull request, gatedYours to build and ownManual runs, on request
Security scanningSAST and dependency, every commitUsually a separate hire againNot offered
What gets reportedEscape rate, flake rate, coverage per releaseWhatever they choose to trackDefect counts
Scaling downTwo weeks' noticeA redundancy processContract-dependent
Our process

From no coverage to a gated pipeline in six weeks

01
Week 1

Audit and test strategy

One week reading the code, the defect history and how you actually release. You get a written strategy and a risk-ranked list of what to automate first.

Codebase and architecture review Defect history and escape analysis Risk ranking by user impact Tooling decision, agreed with your team
02
Week 2

Framework and pipeline

The harness, the CI job and the first ten tests. Green on your own pipeline before anyone scales the suite.

Repository structure and page objects CI job on every pull request Test data and environment strategy First critical-path tests running
03
Weeks 3–6

Suite build

Critical paths first, then breadth. You watch the coverage number move every week rather than hearing about it at the end.

End-to-end flows in risk order API and integration layer Performance baseline captured Weekly coverage and defect report
04
Ongoing

Run it, then hand it over

The suite gates your merges. We keep it green, and we teach your engineers to keep it green without us.

Merge gating on critical paths Flake triage inside 24 hours Runbook plus two handover sessions Release readiness report each cycle
InApps engineers reviewing test results together in the Ho Chi Minh City office
Hiring process

Four stages before anyone writes a test against your code

Stage 1

Live coding & system design

  • Real-world coding challenge
  • System design interview
  • Code quality and problem solving
Stage 2

Communication & English

  • Technical communication
  • Client-facing scenario
  • Written and spoken English
Stage 3

Agile collaboration & ownership

  • Agile mindset and teamwork
  • Ownership and accountability
  • Adaptability and growth mindset
Stage 4

Final review & reference check

  • Technical panel interview
  • Reference and background check
  • Culture and values alignment
3%
pass rate
4
vetting stages
92%
12-month retention
2–4wk
time to first engineer
What it costs

What decides the cost of a QA engagement

We do not publish a rate card for this work. The honest answer turns on five things, and here they are in the order they usually matter.

The five factors that decide the cost of a QA testing engagement, and what makes each one cheaper or more expensive
Cost driverCheaper whenExpensive when
How much already existsA suite that runs, even a thin or neglected oneZero coverage and no test data. Weeks one and two are archaeology before a single test is written
Surface areaOne web app and one browser matrixWeb plus iOS plus Android plus a public API. Each one is a separate harness with its own maintenance
Release cadenceFortnightly, with a staging environment that matches productionSeveral times a day, where the whole gate has to finish in under ten minutes
Cost of an escapeA user retries and nothing was lostMoney moved, or a regulator sees it. Coverage depth and sign-off both go up
Environments and dataStable staging with seedable test dataShared environments and production-copy data with a compliance process wrapped around it
Ask any QA vendor to quote the maintenance, not just the build. A suite is built once and maintained forever, and the second number is usually larger by year two. It is also the number most proposals leave out. We scope both and put the assumptions in writing.
Get both numbers for your codebase
Tooling

What we test with, and why none of it locks you in

Every tool here is open source or has a tier your team can run without us. That is the point. A suite you cannot execute after we leave is not an asset.

Web and mobile

Playwright by default for web end-to-end: fastest, best debugging, actively maintained. Cypress where your team already knows it, Selenium where a legacy suite exists and rewriting it is not the priority. Appium for native and hybrid mobile. BrowserStack for the device matrix no office can hold.

API, load and unit

Postman and Newman for API contract tests, REST Assured on Java stacks. k6 for load, JMeter where you already run it. Jest, Vitest and JUnit at the unit layer, which stays your engineers' job and not ours.

Pipeline and reporting

GitHub Actions, GitLab CI or Jenkins, whichever you already run. SonarQube for static analysis and coverage gates. Allure for reports a product manager will actually open.

PlaywrightCypressSeleniumAppiumPostmank6JestGitHub ActionsGitLab CIJenkinsSonarQube
Testimonials

Ask the people who stayed

Every quote below is from a verified review. None of them were written by us.

“They don’t just build what you ask for. They think about the end result, and then go beyond it.”

James Fitzgerald
CTO, computer software company

“They find the right developers fast, and actually listen when you push back. That combination is harder to find than it sounds.”

Arno Nederlof
Lead developer, healthtech company

“Clear expectations, rules that actually hold, delivered on time. And the people are genuinely easy to work with, not just professionally, but as humans.”

Karolina Kwaśniewska
External Resourcing Manager, Future Processing

4.9 / 5 Across 50+ verified reviews on Clutch, where reviewers are interviewed directly and we never see the draft.

Ranked #1 in Vietnam
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Is this a fit?

Worth the call, or worth a no

QA outsourcing is the wrong shape for plenty of good teams. Here is where it works, and where we will point you somewhere else instead.

This works well if

  • You are releasing faster than manual testing can keep up, and the gap widens every quarter.
  • You have no automated regression suite, or one nobody on the team trusts any more.
  • You want QA inside the sprint rather than a gate bolted onto the end of it.
  • You need a device matrix or a load profile you cannot justify buying and staffing.

This is not a fit if

  • You want a QA engineer on your own org chart long-term. That is IT staff augmentation, it costs less than this, and we will say so on the first call.
  • You need the product built as well as tested. Start at custom software development and fold QA into that engagement.
  • You want a green tick for a compliance form without changing how you release. Automation does not survive that, and neither does the budget.
  • You have no staging environment and no test data. Fix that first. We will tell you what it takes, at no charge.
Common questions

Answered without the hedging

Still deciding?

Send us the release that keeps slipping. We will tell you whether the problem is coverage or process, including when it is the second one and we are the wrong purchase.

Book a discovery call
What are QA testing services?
QA testing services are an outsourced quality function: engineers who verify your software works before your customers find out that it does not. A full engagement covers four things - a written test strategy, an automated regression suite, manual exploratory testing where automation is the wrong tool, and the pipeline work that runs all of it on every commit. Some teams buy all four. Most buy two.
How much do QA testing services cost?
We do not publish a rate card, because five things move the number more than the hourly rate does: how much coverage already exists, how many platforms you ship on, how often you release, what a defect costs when it escapes, and whether you have a usable staging environment. The five drivers are set out here. The one thing worth insisting on with any vendor is a maintenance figure alongside the build figure, because by year two the second one is usually larger.
What is the difference between QA and software testing?
Testing finds defects in software that already exists. QA changes the process so fewer defects arrive in the first place - entry and exit criteria, definition of done, bug triage, release readiness. Software testing services usually mean the first. We do both, because a test suite bolted onto a broken process just reports the same defects faster and more expensively.
Which test automation framework do you use?
Playwright is the default for web end-to-end: fastest, best debugging, actively maintained. Cypress if your team already knows it, Selenium if a legacy suite exists and rewriting it is not the priority. Appium or Detox for mobile. Postman and Newman or REST Assured for APIs. k6 for load. The rule is that we pick what you can hire for after we leave, not what we prefer to work in.
How much test coverage do we actually need?
Less than most vendors will sell you. Chasing a coverage percentage produces a slow suite full of tests nobody reads. We automate by risk instead: the flows that cost money when they break, the ones that broke before, and the ones you are most afraid to touch. That is usually a small fraction of the codebase and most of the actual risk.
How does QA outsourcing work alongside our existing team?
Our engineers join your standups, your board and your repository, and they raise defects in the tracker you already use. There are three shapes this takes - an embedded engineer, a dedicated pod, or a fixed-window audit - and the differences are laid out here. Ho Chi Minh City is GMT+7, which gives three to four hours of live overlap with Europe and an early call with the US East Coast.
How do you handle flaky tests?
As bugs, with an owner and a deadline. A test that fails at random is worse than no test, because it teaches the whole team to ignore a red build. Flaky tests get quarantined out of the merge gate the same day, fixed inside 24 hours, and flake rate is reported as a number in the weekly report. If it climbs, that is a conversation rather than something you find out about later.
Can our team maintain the suite after handover?
That is the point of building it the way we do. Everything lives in your repository from the first commit, structured with page objects and shared fixtures so a new test is a small change rather than a copy-paste. You get a written runbook and two handover sessions with your engineers. Plenty of clients keep us on a light retainer afterwards, but none of them has to.
Let's start

Tell us about the release that keeps slipping

No pitch and no credentials deck. We look at your repository and your last three releases, and come back with what to automate first and what it costs. If the problem is your process rather than your coverage, you will hear that on the first call.

4.9 / 5 from 50+ verified reviews on Clutch
No sales deck Test strategy back within five days The suite is yours from the first commit