Recently I learned that if you specify a title for your "Main" activity, the app drawer shows that title under App-icon instead of the "app_name" provided in applicationtag. Which may not be the desired/expected behaviour for some.

Before

With the following code, the app drawer shows the activity label in the app drawer and the application label on the app's info page.

   <application
        android:name=".WhereIsMyMoneyApp"
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="Where is my money" 
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity
            android:name=".MainActivity"
            android:label="Transactions"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

After

After removing activity's android:label now both app drawer and App's info page show the same name.

        <activity
            android:name=".MainActivity"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

Tip

Avoid giving your “Main” activity android:label="@string/any_name" if you don’t want that name to end up in the App drawer.