Tizen Developers

hi

What i have understood that you want to run another app from your app. 
By this code you will get list of apps...

//appId.js
 
 function onListInstalledApps(applications) {
     for (var i = 0; i < applications.length; i++)
         console.log("ID : " + applications[i].id);
 }

 tizen.application.getAppsInfo(onListInstalledApps);
 
 //config.xml
 
 <tizen:privilege name="http://tizen.org/privilege/application.info"/>

And to launch a specific app, use this code

//launchSettings.js

function onSuccess () {
    console.log(“Launched Settings”);}

function onError () {
    console.log(“Cannot Launch Settings”);}

var appId=" com.samsung.clocksetting";    // For Samsung device
var appId2="org.tizen.clocksetting";    // For other device or Emulator     
tizen.application.launch(appId, onSuccess, onError); // appId or appId2

//config.xml

<tizen:privilege name="http://tizen.org/privilege/application.launch"/>

Ref: https://developer.tizen.org/community/code-snippet/web-code-snippet/launch-%E2%80%98settings%E2%80%99-app-wearable-web-application-0?tab=all