From iOS 18.4 and iPadOS 18.4 onwards, users can change the default application on the device, such as changing the default messaging application on iPhone or choosing a new default translation application instead of the built-in Translation application on iPhone. Below are instructions for changing the default translation application on iPhone.
How to change default iPhone translation app via Settings
We access Settings on iPhone, then click on Apps . Next, click on Default Apps to adjust the default application.
Here you select Translation and then change the default translation application on iPhone , with the applications you have installed.

How to change the default translation app on iPhone
You can also adjust the default translation app for iPhone right in the app's live customization.
You go to Settings then select Apps and click on the default translation application on your current iPhone.
In this settings interface, you click on Default Translation App and then also select the new default translation app .
Once set up, your device will use the selected translation app to translate content when requested.
