My android app can download but doesnt appear in my downloaded apps

My android app can download but doesnt appear in my downloaded apps

My new android app can download from the playstore but doesn't appear in
my downloaded apps. When i download it from the play store usually there
is an option to 'open' the app aswell as 'uninstall', only the uninstall
button is visible. (http://i.imgur.com/jNTvJq2.png notice the missing open
button)
here's the my manifest, there were no errors during all the tests i ran.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.jackattackapps.bigl"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:allowBackup="true"
android:icon="@drawable/iconimage"
android:label="@string/app_name"
android:theme="@style/Theme.Sherlock" >
<activity
android:name="com.jackattackapps.bigl.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAINACTIVITY" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name="com.jackattackapps.bigl.Splashscreen"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.SPLASHSCREEN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="com.google.ads.AdActivity"
android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"/>
</application>
</manifest>
And this is the activity that is supposed to load on the start of the
application.
package com.jackattackapps.bigl;
import android.app.Activity;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.Bundle;
public class Splashscreen extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.splashscreen);
Thread timer = new Thread(){
public void run(){
try{
MediaPlayer ourSong =
MediaPlayer.create(Splashscreen.this, R.raw.splashsound);
ourSong.start();
sleep(2300);
}
catch (InterruptedException e){
e.printStackTrace();
} finally {
Intent openMainActivity = new
Intent("android.intent.action.MAINACTIVITY");
startActivity(openMainActivity);
}
}
};
timer.start();
}
@Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
finish();
}
}
if more information is needed just comment, help would be appreciated
greatly.