

Do not treat this as a bug. Treat it as a safety feature. Financial regulations in Vietnam require specific disclosures in the state language. If you see Vietnamese legal text, it is legally binding. A "better" app would translate the navigation but keep the legal fine print in Vietnamese—which ZaloPay does.
Ensure you have the latest version of ZaloPay or Zalo from the App Store or Google Play.
: Offer "Dual-Language Mode" where transaction titles appear in both Vietnamese (for the merchant) and English (for the user). Payment Gateway - Zalopay Docs
If this solves your problem, congratulations—you have successfully changed ZaloPay’s language. But if you are reading this, you likely want a better result. Let’s move to advanced fixes. zalopay change language better
Abstract ZaloPay is a widely used mobile payment platform in Vietnam integrated into the Zalo ecosystem. Effective multilingual support and the ability to change app language are crucial for accessibility, regulatory compliance, user satisfaction, and market expansion. This treatise analyzes the current challenges for language-change features in ZaloPay, catalogs user needs and technical constraints, proposes design principles, details implementation strategies across frontend and backend, discusses testing and quality-assurance approaches, outlines metrics and analytics for measuring success, and examines organizational and policy considerations. Concrete recommendations, rollout plans, and risk mitigations are included.
If you ever run into a payment discrepancy, navigating to the "Help Center" within your newly translated app will guide you to customer support channels that can accommodate English-speaking users.
Many users expect a simple "Language" option in the app's settings. Based on available information and user reports, ZaloPay's built-in language selection is currently limited. The primary language for the website and app is Vietnamese. Many users have reported difficulty finding an in-app language switcher, with some stating there is no option to change the language at all. Do not treat this as a bug
Even if an app doesn't support your language, you can use a translation app to navigate it. This works especially well if you only need to perform a specific task.
Launch the ZaloPay app on your Android or iOS device and log in.
If the app continues to default back to Vietnamese, check your smartphone's global settings. Go to your phone's settings, ensure your regional language is set correctly, and allow apps to inherit your system language preference. Maximize Your ZaloPay Experience If you see Vietnamese legal text, it is legally binding
: From the home screen, tap the Cá nhân (Personal/Profile) icon, usually located in the bottom right corner.
Users often complain that after switching to English, some sections remain in Vietnamese. Specifically:
ZaloPay is deeply integrated with the Zalo chat ecosystem. Because of this connection, changing your language layout sometimes depends on how you access the wallet. Follow these methods to update your interface.