Tips to Localise Your Mobile App for International Audiences

Your mobile app might be available worldwide — but is it truly suitable for people worldwide? That is the key question behind mobile app localisation.

Smartphones are used seven times more to access mobile apps than mobile websites in many global markets, including Brazil, Russia, and across Southeast Asia. With billions of active users on both the Apple App Store and Google Play, the opportunity to reach international audiences is enormous. But reaching those audiences only works when your app feels native, not foreign, to each of them.

This guide walks you through the most useful tips for localising your mobile app — from the early stages of development right through to launch and beyond.

What Is Mobile App Localisation?

Mobile app localisation is the process of adapting your app to suit the language, culture, and functional expectations of users in a specific market. It goes well beyond translating the text on your screen.

Localisation includes changing date and time formats, currencies, colour choices, images, and even the layout of your interface. Understanding what the different types of localisation actually involve is a smart first step when planning your approach. Generally, localisation covers four main pillars:

• Linguistic adaptation — translating content into the local language with cultural accuracy
• Cultural adaptation — adjusting imagery, tone, and references to suit local norms
• Technical adaptation — handling currencies, date formats, and right-to-left scripts
• Legal adaptation — meeting local data regulations and app store requirements

It is worth noting that localisation and translation are not the same thing. Translation changes words. Localisation changes the entire experience.

Why Mobile App Localisation Matters

The business case for localisation is strong. Research consistently shows that users are far more likely to download, engage with, and spend money on an app when it is available in their native language. In fact, a study by CSA Research found that 76% of consumers prefer to buy products in their own language, and 40% will not buy from websites or apps in a foreign language at all.

Understanding why localisation is important for your business helps you make smarter decisions about which markets to enter and how to approach them. A well-localised app also tends to rank higher in local app store searches, which brings in more organic downloads at no extra cost.

Apps that feel local build trust. Apps that feel foreign lose users quickly.

Tip 1: Start with Internationalisation (i18n)

Before you can localise your app, it needs to be built in a way that actually supports localisation. This preparation stage is called internationalisation, often shortened to i18n.

Internationalisation means designing your app’s code so it can handle multiple languages and regional settings without needing to be rewritten. Here is what that involves:

• Separating all text strings from the code so they can be easily swapped out per language
• Supporting Unicode characters for non-Latin scripts like Arabic, Thai, or Chinese
• Building flexible UI layouts that can expand when translated text is longer than the source
• Adding support for right-to-left (RTL) reading formats used in languages like Arabic and Hebrew

The earlier you do this, the cheaper and easier localisation becomes. Going back to retrofit internationalisation into an already-live app is a costly process. Build it right from the start.

Tip 2: Choose the Right Target Markets

You do not need to localise your app for every country in the world at once. Trying to do so is expensive and often leads to poor results across the board.

A smarter approach is to identify a shortlist of high-potential markets. When choosing where to focus, consider:

• Where users are already downloading your app, even without full localisation
• The size of the mobile user base in each market
• How competitive the app landscape is in that region
• Local pricing expectations and payment habits
• Regulatory requirements for your app category

Looking at localisation strategy examples from global companies can give you a clearer picture of how businesses approach market prioritisation. Brands like Netflix, Grab, and Shopee all started with focused regional strategies before scaling globally.

Start small, do it well, then expand.

Tip 3: Translate Thoughtfully, Not Literally

Translation is the heart of app localisation, but good translation is never word-for-word. A direct, literal translation can sound unnatural — and in some cases, even cause offence.

The goal is to produce translations that feel as though they were written by a native speaker, for native speakers. This means working with professional translators who understand your app’s subject matter, not just the language.

There are many different approaches to translation depending on the type of content involved. Learning about the different types of translation available can help you decide which method fits your app best — whether that is technical translation for help documentation, transcreation for marketing copy, or standard localisation for in-app text.

Key content to translate and localise includes:

• All in-app text — menus, buttons, error messages, push notifications
• Onboarding screens and tutorials
• App store title, subtitle, and description
• Customer support documentation and FAQs
• Screenshots and preview videos

For most apps, a combination of professional human translation and AI-assisted post-editing works best. AI translation technology has advanced significantly in recent years, and when paired with human reviewers, it can deliver accurate, natural-sounding translations efficiently and at scale.

Tip 4: Adapt to Local Culture

Language is only one part of the picture. Cultural adaptation is equally important — and it is often what separates a basic localisation from a truly effective one.

Maintaining brand consistency while adapting to different cultures is a balancing act that every global business must manage. Your brand voice, style, and values should remain consistent, but the way they are expressed should flex to suit local expectations.

Key cultural elements to adapt include:

• Colours: Red signals luck in China but danger in many Western markets. White is associated with mourning in parts of East and Southeast Asia.
• Imagery: Avoid culturally specific gestures, symbols, or figures that could be misread. Use locally relevant visuals wherever possible.
• Tone of voice: Some cultures expect formal communication; others respond better to a friendly, casual tone.
• Humour and idioms: These rarely translate directly. A joke that works in English may be confusing or offensive in another language.
• Religious and seasonal sensitivity: Be mindful of local holidays, customs, and values — especially in push notifications and promotional content.

If you are expanding into Asian markets, cultural differences can be especially pronounced. For instance, brand localisation in Greater China requires navigating the differences between Mandarin and Cantonese, Simplified and Traditional Chinese, and varying consumer behaviours across mainland China, Hong Kong, and Taiwan.

Tip 5: Optimise Your UI and UX for Each Market

A great user experience in one market can be a frustrating one in another. Your app’s user interface must accommodate the specific demands of each local version.

Key UX considerations include:

• Text expansion: Languages like German or Finnish can expand translated text by 30–40% compared to English. Buttons, labels, and containers must be flexible enough to handle this.
• RTL layout support: Arabic and Hebrew read right to left, which means your entire interface layout may need to be mirrored.
• Font readability: Choose fonts that display clearly in each language’s script, particularly for Chinese, Japanese, and Korean (CJK) characters.
• Input fields: Consider local keyboard types and input methods when designing forms, search bars, and login screens.
• Local imagery and icons: Familiar icons in one country can mean something different in another.

Many of the same principles that apply to website localisation for a global-friendly experience also apply directly to mobile app UX. Both your app and your website should offer a consistent, localised experience for users in the same region.

Tip 6: Localise Technical Elements

Technical localisation is easy to overlook, but small details like date formats and currency symbols have a significant impact on how professional and trustworthy your app feels.

Technical elements to localise include:

• Date and time formats: 03/04/2025 means 3rd April in the UK but 4th March in the US. Use the format that is standard in each target market.
• Currency and pricing: Display prices in local currency, and make sure payment methods are relevant to users in that region. Many Southeast Asian users prefer digital wallets such as GoPay or GrabPay over credit cards.
• Units of measurement: Metric vs. imperial usage varies by country and app category.
• Phone number formats: These differ widely and matter most for registration and two-factor authentication flows.
• Privacy and data compliance: Follow local data laws such as GDPR in Europe, PDPA in Singapore and Thailand, or PIPL in China.

Much like ensuring your e-commerce platform is ready for localisation, your app needs the same attention to technical detail — especially around payments, compliance, and regional formatting standards.

Tip 7: Optimise Your App Store Listings (ASO)

App Store Optimisation (ASO) is to your app what SEO is to your website. If your app store listing is not localised, users in your target market will not find it — no matter how well the app itself is built.

For each market, your ASO strategy should cover:

• App title and subtitle: Include locally relevant keywords. Do not just translate — research how local users actually search.
• App description: Rewrite it to highlight the features that matter most in each market. A finance app in Southeast Asia might emphasise low-fee transfers, while the same app in the UK may focus on investment tools and FCA compliance.
• Screenshots and preview videos: Use local language, locally relevant settings, and culturally appropriate imagery.
• Icon adaptation: Some icons carry different connotations across cultures. Review yours for each market.
• Ratings and reviews: Respond to reviews in the local language. This builds trust and signals to app stores that you are genuinely serving that market.

The same careful, strategic approach you would apply to choosing the best method for translating your website applies equally to your app store presence. Consistency in language quality across all your digital touchpoints builds credibility.

Tip 8: Test Your Localised App Thoroughly

Localisation testing is a step that many teams rush — and it shows. Broken layouts, missing translations, and culturally inappropriate content can damage your brand in a new market before you have even had a chance to build a reputation.

Your testing checklist should include:

• UI layout checks at different text lengths (some translations will be much longer than the original)
• Correct display of dates, times, currencies, and numbers
• Right-to-left layout rendering for Arabic, Hebrew, or other RTL languages
• Confirmation that all translated strings are in place with no leftover English text
• Cultural appropriateness of all imagery, icons, and colours
• Functionality of local payment gateways
• Performance testing on devices that are popular in the target market

Wherever possible, involve native speakers from the target market in your review process. A localised app should be checked by someone who actually lives and breathes that language and culture — not just someone who can read it.

Tip 9: Localise Your Customer Support

Launching a localised app without localised support is a common mistake. If a user encounters a problem and cannot get help in their language, they are likely to leave a negative review and uninstall.

Consider offering the following in each target language:

• In-app FAQs and help documentation
• Automated chatbot responses
• Email support templates
• Error messages and system notifications

Even a basic level of localised customer support goes a long way. It tells users that you take their market seriously.

Tip 10: Collect Feedback and Keep Improving

Localisation is not a one-time project. User expectations evolve, language changes, and new cultural sensitivities emerge. Your app should evolve with them.

After launching in a new market, actively gather feedback from local users through:

• App store reviews (read and respond to them in the local language)
• In-app surveys or ratings prompts
• Social media listening in the target language
• Customer support query analysis

Use that feedback to improve translations, update cultural references, fix technical issues, and refine the overall user experience. Apps that invest in ongoing localisation consistently outperform those that treat it as a one-off task. They receive better ratings, stronger retention, and more word-of-mouth growth in each market.

A Quick Checklist Before You Launch

Before going live in a new market, run through this localisation checklist:

Ready to Take Your App Global?

Localising your mobile app is one of the most effective ways to grow your user base and generate revenue in new markets. It requires careful planning, professional expertise, and a genuine understanding of your target audiences. The details matter — and getting them right is what turns a global product into a local favourite.

Whether you are just getting started or looking to expand into new regions, Elite Asia’s App and Software Localisation Services can support you at every stage of the process — from translation and cultural adaptation to technical localisation and quality testing.

Contact Elite Asia today to find out how our expert team can help your app connect with users around the world.