There are some real bargains to be had in the app store this weekend, we’ve listed a few to help get you started. Take a look at these… GeoRing – instant ringtone shuffle ★★★ 50% Off. Sale till 5th March ★★★ Instantly turn your entire iTunes music library into ringtones. Shuffle your ringtones to hear a new song every time. No other app makes ringing so much fun! ★ Change your ringtone to any song in your iTunes library with just a few taps. Unlike other ringtone-making apps, GeoRing doesn’t require iTunes syncing, which means your phone can ring with any song, instantly. ★ Create a Ringtone Playlist of your…