Here’s the revised README.md with the additional note in proper English:

react-native-appchecker

Easily check if a third-party app is installed and launch it directly from your React Native app.

Installation

Install the package using npm:

npm install react-native-appchecker  

Configuration

For iOS, add the third-party app scheme to your Info.plist:

<key>LSApplicationQueriesSchemes</key>  
<array>  
    <string>third_party_app_schema</string>  
</array>  

Note: To check or open a third-party app on iOS, you must provide the app's scheme. For Android, you need to provide the app's package name.

Usage

Import the AppChecker module in your React Native application:

import AppChecker from 'react-native-appchecker';  

Check if a third-party app is installed

const isInstalled = await AppChecker.checkThirdPartyApp('third_party_app_name');  
if (isInstalled) {  
    console.log('App is installed!');  
} else {  
    console.log('App is not installed.');  
}  

Open a third-party app

await AppChecker.openThirdPartyApp('third_party_app_name');  

Example

import React from 'react';  
import { Button, Alert } from 'react-native';  
import AppChecker from 'react-native-appchecker';  

const App = () => {  
    const checkApp = async () => {  
        const isInstalled = await AppChecker.checkThirdPartyApp('third_party_app_name');  
        Alert.alert(isInstalled ? 'App is installed!' : 'App is not installed.');  
    };  

    const openApp = async () => {  
        try {  
            await AppChecker.openThirdPartyApp('third_party_app_name');  
        } catch (error) {  
            Alert.alert('Error', 'Could not open the app.');  
        }  
    };  

    return (  
        <>  
            <Button title="Check App" onPress={checkApp} />  
            <Button title="Open App" onPress={openApp} />  
        </>  
    );  
};  

export default App;  

Contributing

Contributions are welcome! Please check the contributing guide for details on how to contribute to the repository and participate in the development workflow.

License

This project is licensed under the MIT License.