Can you Critique my singing?

Kendall

I did a cover of Christina Perri's "The Lonely", and I want to know what you think. Sorry about the quality, it was shot on an iPhone. Thanks!

Liz

Did you realise that you can't sing in tune?

Taco

OMG YOU ARE AMAZING! DON't LISTEN TO THAT IDIOT WHO SAID YOUR NOT IN TUNE. I'm A VOCAL COACH AND YOUR VOICE SOUNDS PERFECT, HOW OLD ARE YOU?

The Vocalist Crusader

You had a few flat areas.

Why can't i hear the person singing when i listen to music on my new iphone speakers? I have the new headsets and i plugged it in to my computer to listen to music and i messed around with the volume thing or something like that so now i can BARLEY hear what the person is singing but i can still hear the background music. I can hear the peron singing when i hold down the button that's in the center of the + and - sign.
What can i do to make my singing less irritating/bad? Its ok but on iphone it sounds a bit irritating sometimes what can i do drink eat or anything to help smoothen it
What are some good singing apps? I'm just looking for apps on my iPhone or on my laptop (windows 8) to help me with recording. I have a mic and pop filter for my laptop. Can someone help me get started?
My Singing Monsters Cheats Iphone, Ipad? I'm playing this game for iphone my singing monsters, does anyone know if there's a my singing monsters cheats tool that will get me free diamonds in the game. This game is really coold, all diff types of music each monster does but i need free diamonds in the game and i don't wanna pay cash. Anyone know of a iphone my singing monsters cheats or maybe even one for ipad. I need something that doesn't need a jailbreak to hack the my singing monsters game.