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What if everything
just worked?
For every user. Everywhere.
Testlio’s fully managed AI-driven crowdsourced testing platform integrates expert, on-demand testers directly into your release process. Ship faster and more confidently with global coverage across 600,000+ devices, 800+ payment methods, 150+ countries, and 100+ languages.
Voted #1 Testing Partner
A crowdsourcing model built for accountability and scale
Testlio was founded by Kristel and Marko Kruustük, who were frustrated by the lack of pride and structure in most crowdtesting platforms. They believed quality work should be valued, supported, and managed, not left to chance.
That belief paved the way for a fully managed testing model built to keep engineering teams focused, uncover issues that matter, and move high-quality releases out the door faster.
On-demand expertise, available when and where you need it
Testlio’s community is the backbone of our managed crowdsourced testing platform. With only the top 3% of applicants accepted, we’ve built a global team of 10K+ vetted experts across 150+ countries who know their domains, understand their markets, and are rewarded for testing thoughtfully, not just checking boxes.
Extensive real-world validation for your most demanding releases
Get broad, reliable coverage across devices, payments, and global user flows. Our deeply skilled testers work in real-world environments to uncover high-impact issues across your entire product lifecycle.
Deploy vetted, domain-aligned testers who embed directly into your release cycles. Our experts go beyond checklists to uncover real usability and functional issues at speed and scale.
Make AI features safe, reliable, and ready for real users. Evaluate model outputs, data sets, biases, hallucinations, and simulate edge cases with human insight at every step.
Validate the entire customer buying journey and not just transactions. Test everything from functional flow and integrations to usability and compliance issues with real users and payment methods.
Ensure your core features work as expected. Test across devices, browsers, and environments to confirm behavior under real conditions.
Release experiences that feel native in every market. Validate translation accuracy, layout, regional behavior, and cultural context with in-market testers.
Confirm that barriers don’t block your users. Test with assistive tools and diverse environments to ensure accessibility in real scenarios.
One platform to manage testers, results, and releases
The Testlio platform was built to take the weight of testing off your team. Powered by LeoAI Engine™, it streamlines everything, from sourcing skilled testers to managing test runs, triaging results, and delivering clear, actionable reporting. With deep integrations into your existing tools and workflows, it gives you complete visibility and control without slowing you down.
Case studies
Top Ride-Sharing Company
A leading ride-sharing company with services in 70 countries needed a comprehensive final gate partner for its driver app and in-market localization services for users worldwide.
Leading Furniture and Home Goods Retailer
A multinational retail company that sells furniture and home goods to customers in five countries and across five brands needed a comprehensive quality assurance partner to continue delivering exceptional user experiences.
Delivering exceptional client outcomes
The go-to for localization testing partnerships
“Because of how flexible Testlio is and how many services you offer, I’ve partnered with Testlio for localization testing in my last two companies. I’ve shown up with Testlio as my location QA testing vendor for localization and then the engineering team wanted to expand the collaboration with Testlio to functional testing and location testing.”
Nicole Kittle Broe
Director of Localization
Testlio’s seamless integration: supercharging feedback loop
“Testlio’s bi-directional integration to Atlassian Jira gives our teams seamless access to product quality insights while also maintaining a unified system of collaboration for efficiency, process governance, and traceability. The result is a faster and more actionable feedback loop on software quality”
Mark Armstrong
Quality Assurance Manager
Stellar collaboration elevates NBA product quality
“Great partnership to ensure the quality of NBA products and Services”
Shaun W
Senior QA | Release Manager
Testlio goes the extra mile!
“I like how easy Testlio is to work with. It is as if they already understand what you are looking for and are willing to go the extra mile to ensure their service is top notch.”
Max Robertson
Senior Manager Streaming and Video
Driving success through customer obsession
“Testlio is customer obsessed, committed to making us successful and realizing the full value of their services.”
Saradhi Potharaju
Principal Engineering Manager
See why Testlio outshines alternatives
Testlio’s clients are not only satisfied, but are also thriving. Don’t take our word for it, see what our clients have to say and how we compare to alternatives.
In the spotlight
Why partner with Testlio?
We’re not just here to help you test. We’re here to help you move faster, with fewer surprises. Testlio gives your team the flexibility to scale without the overhead, the confidence to release without second-guessing, and the visibility to stay in control from start to finish.
Proven in the real world
With over a decade of experience testing everything from global platforms to fast-moving product teams, we know how to balance speed, structure, and depth without slowing you down.
Test where your users are
Testing happens on real devices, with real users, across 150+ countries, 100+ languages, 800+ payment methods, and every major platform. If your customers use it, we can test it.
Flexible as you grow
Dedicated teams when you need consistency. Crowdsourced bursts when you need speed. Outsourced or nearshore options when you want more lift. Our model adapts as your needs evolve.
Transparency at every step
Track test execution, review issues, audit performance, and see who’s doing the work. Everything’s documented, accessible, and built to keep you in the loop.
Security you can count on
We’re ISO/IEC 27001:2022 certified and built for enterprise scale. From data handling to tester management, we bring structure and security to every engagement.