Skip to main content
Manual Testing Services

Manual Testing That Catches What Automation Misses

Our QA engineers test your web and mobile apps by hand. We run functional, regression, and exploratory passes to catch the usability problems and real-world bugs automation misses. Every bug we find comes back logged with clear steps to reproduce it.

See All Services

How our QA engineers work

Our manual QA engineers work on two levels: testing what's been built, and preventing defects in what you build next.

Reactive · Testing

Test Design & Execution

We start by learning your application, its requirements, and what it's meant to do. Then we design a lean set of test cases to cover that, run them, and report back every result and every defect.

  • +Analyze the app, requirements, and intended purpose
  • +Design test scenarios and cases for coverage, prepare test data for the edge cases, and plan execution
  • +Run planned and exploratory testing from a real user's perspective across browsers, devices, and platforms
  • +Report every result and defect back to you
Proactive · Prevention

Defect Prevention & Process

We get involved from the start of development, so defects are prevented at the requirement stage instead of found after the code is written. Along the way we help your delivery process run more smoothly.

  • +Involved from the start of development, not just before release
  • +Prevent defects at the requirement level, before code is written
  • +Improve QA and team processes
  • +Organize delivery to maximize efficiency and reduce rework

Most QA providers only cover the first column. We start earlier, so fewer bugs reach you at all. Tell us about your process and we'll show you where we'd start.

Is it time?

When to Bring In Manual QA Engineers

If any of these sound familiar, it's probably time to bring in dedicated manual QA engineers.

01

You're shipping faster than you can test

Features go out with little more than a quick self-check. You need professional coverage that keeps pace with development.

02

A high-stakes launch is coming

A major release, demo, or investor deadline is close, and you can't afford an embarrassing bug in front of real users.

03

You need QA now, not in three months

Recruiting an in-house tester takes months. Hiring manual QA engineers as a service puts experienced engineers on your product within days.

04

Your workload just spiked

A temporary surge doesn't justify a permanent hire. Scale a dedicated QA engineer team up for the crunch, then back down.

05

Bugs keep reaching production

If users are finding defects before you do, you need a fresh set of expert eyes testing from a real-user perspective.

06

You want process, not just extra hands

Beyond finding bugs, our manual QA engineers bring the test design, coverage discipline, and reporting of a full QA team.

Recognize two or more? Talk to our QA team and we'll have manual QA engineers reviewing real builds within days.

How We Work With You

Pick the engagement that fits where you are: a one-off pass before a launch, a fixed-scope test cycle, or QA engineers embedded in your team.

Ongoing

Embedded QA

A dedicated QA engineer joins your sprints, attends standups, and tests every story as it's built, so testing keeps pace with development.

Fixed scope

Project Test Cycle

A fixed block of testing against a set scope. We write the test plan, run it across your key flows and platforms, and hand back a full defect report and coverage summary.

On demand

Pre-Release Check

A quick pass before you ship: critical-path regression, smoke testing, and a clear go/no-go call when the release deadline is tight.

Service vs. In-House

Manual Testing Service or Hire In-House QA?

Both can be the right call. Here's a side-by-side to help you see which one fits your budget, timeline, and workload.

Consideration
Our service
AssertQA Manual Testing
Alternative
In-House QA Hire
Time to first test
Testing starts within days
Weeks to months to source, hire, and onboard
Upfront investment
No recruitment, salary, or overhead to carry
Recruitment, salary, benefits, tooling, and workspace
Ramp-up
Experienced engineers, productive from day one
Onboarding and training before full output
Scaling
Flex the team up or down with your release schedule
Fixed headcount whatever the workload
Skill breadth
A full QA team's methods and tools behind every engineer
Limited to one person's experience
Coverage gaps
No downtime for holidays or sick leave
Testing stalls when they're away
Process maturity
Proven QA processes in place from the start
Built and refined over months
Commitment
Scale down anytime, with no long-term risk
Long-term commitment and hiring risk

What about the culture?

You've built a team and a way of working that's yours. We're not here to change it, just to test inside it. Our experience is there when you want it.

Hiring in-house makes sense when QA is a permanent need and you have the capacity to recruit, train, and keep someone. But if you need a team quickly, or your workload just spiked and you can't wait months to hire, let's talk. We'll help you work out which one fits.

Why Choose Our Manual Testing Services?

Plenty of providers can run test cases. Here's what actually sets our manual QA apart.

01

A well-drilled team, not a lone tester

QA engineers cross-review each other's coverage and pull in a second opinion on tricky edge cases before anything reaches you — never just one person's read on your product.

02

Prevention and testing, not just one

We catch bugs by testing what's built, and prevent them by getting involved at the requirement stage before code is written — most manual testing stops at execution; ours starts earlier.

03

Curated collective knowledge

The same categories of defects resurface across projects — payment edge cases, state bugs after error recovery, permission leaks. We know where to look first instead of testing blind.

What you receive

What you get for every bug

Each bug comes back as a report your developers can reproduce and fix without having to come back and ask questions, logged straight into the tracker you already use.

  • +Exact steps to reproduce, every time
  • +Expected vs. actual behavior, spelled out
  • +Screenshots and screen recordings attached
  • +Severity and priority so you fix the right things first
BUG-2481High

Cart total doesn't update when a promo code is removed

Environment

Safari 17 · iOS 18 · Production

Steps to reproduce
  1. Add any item to the cart
  2. Apply promo code SAVE20
  3. Remove the promo code
Expected

Total returns to full price

Actual

Discount stays applied

Attachments
screen-recording.mp4network-log.har
Manual + Automation

Found by hand, then kept fixed by automation

We start by hand, exploring and breaking things to map how your product actually behaves. Once a flow is stable, our automation team turns it into a regression check that runs on every build, so the same bug can't quietly return.

Ready to Ship With Confidence?

Tell us what you're releasing and we'll send back a hands-on QA plan. Most teams have our QA engineers reviewing real builds within a few days.

See All Services

Frequently Asked Questions

Common questions about our manual testing services.

Where can I get reliable manual testing for new features?

AssertQA provides reliable manual testing services for new features, releases, and full applications. Our QA engineers validate every user flow by hand, so you ship new functionality knowing the real-world scenarios hold up.

Can you handle both exploratory and regression testing?

Yes. We combine structured regression testing to protect existing functionality with exploratory testing that uncovers unexpected issues. This mix is ideal for teams that need a manual testing services company covering both stability and edge cases.

How do you catch critical bugs that automated tests miss?

Our QA engineers think like real users, not scripts. By focusing on usability, edge cases, and real-user scenarios, we catch the critical bugs that automated suites routinely miss, and document each one with clear reproduction steps.

Who provides trusted manual testing for real-user scenarios?

AssertQA is a dedicated QA partner trusted for real-user scenario testing across web and mobile. We design test cases around how your customers actually use the product, then report defects with screenshots, videos, and priority levels.

How quickly can you start manual testing my application?

We can typically begin within a few days. After a short requirements analysis we build a test plan, prioritize critical flows, and start execution fast so you get actionable feedback early in your release cycle.

Do you use AI to replace manual QA engineers?

No. We use AI as much as it genuinely helps, but it doesn't replace human judgment. Manual testing exists precisely because real user intuition catches what scripts and models miss, so every test is still designed and run by our QA engineers.

How do I hire manual QA engineers without building an in-house team?

You don't have to recruit, onboard, or carry the overhead. AssertQA lets you hire manual QA engineers as a service. Experienced engineers plug into your workflow within days, whether you need a single dedicated engineer or a full QA team. You get the output of an in-house hire without the recruitment risk or long-term commitment.

Can I hire dedicated manual QA engineers on a short-term or ongoing basis?

Yes. You can bring on dedicated manual QA engineers for a single release, a fixed-scope project, or an ongoing embedded engagement, and scale the team up or down as your workload changes. It's a flexible alternative to a permanent hire when you need manual testing services now rather than months from now.

What Our Clients Say...

Don't just take our word for it - hear from the teams we've helped succeed

We've been partnering with AssertQA since 2023, and the impact on our product quality has been substantial. Their QA team has become an integral part of our development process, catching issues early and helping us maintain the reliability our clients expect from a financial services platform.
Rodolpho W. Brito profile
Rodolpho W. Brito
Chief Executive Officer · Excent Capital
We've been relying on AssertQA's manual testing services at dizmo AG for over five years—initially for our desktop product, and later for our SaaS resource planning platform, Planisy. AssertQA has proven to be a dependable and proactive partner, consistently going the extra mile.
Ava Greve profile
Ava Greve
Product Manager at Planisy, Chief Customer Support at Dizmo · dizmo AG
We were rolling out our solution for a client and brought in AssertQA to help with test automation. From day one, they were hands-on, professional, and really cared about making sure everything worked perfectly.
Ognjen Kurtic profile
Ognjen Kurtic
CTO & Co-founder · Finspot
AssertQA has provided us with a range of services across multiple projects we've worked on together. Their automation capabilities are outstanding and integrate quickly into the development team, improving the team's overall efficiency and making the product more robust.
Ivan Mojsilovic profile
Ivan Mojsilovic
CEO · Yanado
I had the pleasure of collaborating with the AssertQA team on the Efinity project. What sets Tatjana and her team apart is their combination of expertise, dedication, and a professional approach to every task.
Momcilo Milosavljevic profile
Momcilo Milosavljevic
Project Manager · Efinity
AssertQA has been a great partner throughout our mobile automation journey. They helped us navigate the initial challenges, provided practical solutions when we were blocked, and played an important role in getting us started successfully.
Henrietta Balzam profile
Henrietta Balzam
Head of Quality Assurance · Solflare