App language and system language are two layers
By default the app follows your phone language, which is why it may switch to Chinese on its own. If you want the app in Chinese while the system stays English, or the reverse, pin it inside the app.
What to prepare before you start
These five things cover almost every delay people run into: Check the language and region settings on your phone.
Decide which interface language you want in the app. Understand that some pages may not be localised yet.
Plan to restart the app for the change to take effect.
Four steps to change language
Follow the order, then restart once: Open the app and go to settings or the profile page.
Find the language option and pick the interface language you want. If there is a "follow system" switch, turn it off to pin your choice.
Close the app completely and reopen it to confirm menus and help centre caught up. If some pages stay in another language, localisation is incomplete; switch temporarily to read them.
Fees, limits and processing times
Numbers change from time to time, always confirm on the official fee page before you commit size: Official entry: use okx.com or your own bookmark, and check the domain letter by letter - look-alike domains are the most common phishing trick here.
Install the app from App Store, Google Play or the official OKX download page; Android users should avoid APK files shared through chat groups. Product availability varies by country and some listed features are restricted in specific jurisdictions.
Review the official terms for your region before relying on any feature, especially derivatives and fiat channels. Spot, margin, perpetual and dated futures, plus options, sit at the core of the platform.
Strategy tools such as grid and DCA bots, copy trading, OKX Wallet with its DEX aggregator, and Earn products extend well beyond simple trading.
The OKX-specific part
The OKX app language setting is also in the profile and defaults to the system language. Once pinned, menus, notifications and the help centre switch together.
Frequently asked questions
Does changing language affect my assets
No. Language is display only.
Do app and web language sync
Usually they are independent and set separately.
Why is it still English after changing
Restart the app; if it persists, check whether "follow system" is still on.
Risk notes and next steps
Keep reading:美股行情总览;用 USDT 买 VOO / QQQ 的完整步骤;特斯拉（TSLA）实时股价. If you cannot find a feature, switch to English temporarily to confirm its name.
Language preference is stored on the account and usually follows you to a new device. Help centre tutorials follow the language setting too.
