Linguistic Testing for Localization

For a flawless global user experience—every time.

Imagine launching your mobile app in Japan, only to find that characters overlap awkwardly, key buttons don’t display the right text, and your helpful error messages read like garbled machine output. Or picture unveiling your website in Germany, only to realize that product descriptions are misaligned, headings overflow the page, and your checkout button translates into something offensive.

These aren’t just minor glitches—they can undermine user trust and derail product adoption.

That’s where we come in. Our linguistic testing services ensure your software, websites, apps, and digital content are fully localized, functionally sound, and culturally fluent in every market. We work with native-speaking experts who thoroughly test your product across platforms, devices, and languages, uncovering the issues that others miss—before your customers ever see them.

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What are Linguistic Testing Services?

When launching in a new market, every word, button, menu, and message must be pitch-perfect. A single mistranslation or formatting hiccup can signal to users that your brand doesn’t understand them—or worse, doesn’t care.

Linguistic testing is the process of reviewing your product’s localized versions in real-world contexts. Our native-speaking testers check that the language reads naturally, that all UI elements display correctly, and that no text is clipped, missing, or inconsistent. We ensure that:

  • Translations are accurate, fluid, and culturally appropriate
  • Text fits properly within menus, buttons, and labels
  • Terminology is consistent across all screens and modules
  • Language-specific punctuation, date formats, and units of measure are correct

Whether it’s a mobile app, SaaS platform, video game, or e-commerce site, linguistic testing makes sure your product doesn’t just function—it connects.

Linguistic Testing
Linguistic Testing

Why Is Linguistic Testing Important?

Let’s say you’re launching an educational app in Latin America. The original English version worked perfectly, but after translating into Spanish, you discover that:

  • Accent marks are garbled on Android devices
  • The “submit” button overflows the screen on iPhones
  • Educational tips refer to U.S.-specific content that confuses your users

These seemingly small problems can frustrate users, damage your reputation, and cost you customers.

Linguistic testing prevents that. It combines linguistic, functional, and cosmetic testing to ensure your localized product is not only correctly translated but ready for real-world use in your target market. We test for everything from culturally appropriate idioms to proper currency symbols and character sets—so your product feels native from the very first interaction.

Learn more on our blog: What Is Linguistic Testing and Why Is It Necessary for Expansion?

Types of Testing

We take a 360° approach to linguistic testing, addressing all the ways a user might experience
your product in another language and culture:

Types of Testing
01

Functional Testing

This QA process ensures that all features, links, and user flows work properly in the localized version. For instance:

  • Do calendar tools work with local date formats?
  • Does the app crash when displaying double-byte characters like Japanese or Chinese?
  • Are dropdown menus responsive in Arabic, where the script reads right to left?

We test across platforms, browsers, and devices to ensure a smooth, frustration-free experience for all users.

Types of Testing
02

Linguistic Testing

This is the heart of what we do—verifying that all localized content is grammatically correct, stylistically natural, and culturally suitable. For example:

  • Is the product description in French elegant and persuasive—or clunky and literal?
  • Does the Korean version maintain the same tone and voice as the original English content?
  • Are any regional sensitivities triggered by certain phrases or word choices?

We use only trained native speakers with subject-matter expertise to catch the nuances machine translation misses.

03

Cosmetic Testing

  • Are translated buttons too long and cut off mid-word?
  • Do screens look cluttered when text expands in German or Finnish?
  • Does text overlap with graphics on mobile?

Cosmetic testing ensures that everything looks as good as it works, regardless of language.

Our Testing Process

Our process is designed to be thorough, efficient, and tailored to your unique product and audience.

Testing Process

Step 1: Requirements Analysis

We start by understanding your product, target markets, platforms, and performance goals. This includes:

  • Identifying the languages, locales, and cultural contexts involved
  • Gathering UI specifications, style guides, and brand tone requirements
  • Mapping out test environments and device/browser combinations
Testing Process

Step 2: Custom Test Planning

We create a tailored plan that defines:

  • Test cases based on typical user journeys
  • Tools and environments needed (emulators, staging sites, beta apps)
  • Clear benchmarks for functionality, formatting, and linguistic accuracy
Testing Process

Step 3: Hands-On Testing by Experts

Our testers immerse themselves in the localized product, performing a combination of manual and automated checks. They document every issue with screenshots, context notes, and recommendations.

Testing Process

Step 4: Reporting and Feedback Loop

You receive a detailed QA report showing every issue and suggestion for resolution. We can work directly with your dev or localization team to implement fixes efficiently.

Testing Process

Step 5: Final Verification

Once updates are made, we retest to verify all issues have been resolved and the product is market-ready.

Why Clients Trust Us for Linguistic Testing

  • 24/7 Availability: We work across time zones and can accommodate urgent turnarounds.
  • Global Reach: Native-speaking testers in over 100 languages and dialects.
  • Industry Experts: We’ve tested products in healthcare, fintech, education, SaaS, gaming, and more.
  • Real Results: Clients have launched in new regions with 0 critical language bugs and increased user satisfaction.
  • Top-Rated: Our services are ranked 9.2/10 on Trustpilot and backed by a lifetime guarantee.
Linguistic Testing