Why did iTunes delete all my apps?

I plugged my iPhone into the computer to download a song that I had bought. All I did was upload the song to my phone, press eject, and take it out.

When I went back to my home screen, all my apps were gone except 5 of them! Why did this happen!

Sometimes unless you transfer the apps that you purchased onto iTunes, when you go to sync stuff it deletes everything not transferred. Its really annoying, I don't like the interface between iTunes and an iOS device at all.

Did you reinstalled your iTunes or tried to upload songs on another computer? It's best to pick one computer to manage your apps, songs and videos. You can download your apps again at no charge. I'd also like to recommend this page for latest iPhone apps: http://www.appfavour.com/ios/iphone

  • Will synching my iphone 4 with iTunes delete all my apps? My friend have me his old iphone 4 and it is currently not connected to any service I'm just using it as an iPod touch sort of. It has my friends old music and apps on it. I want to put my music I it but iTunes asks if I want to start it as a new iphone. I don't know because I definitely don't want to delete all my pics and apps
  • Why did my iphone delete all of my notes? Saying that i'm pissed off is an understatement. I want to smash the fcking thing! I had passwords and other important things saved in my notes! Why did it just get rid of everything! Can i get it back? I tried turning it off then back on hoping it was just being stupid because sometimes it does that but it comes back after i turn it off then back on.
  • Why did my iPhone delete all of my calendar entries? Yesterday afternoon, I sync my iPhone to my computer and let it backup. All my dates were there on the phone (while it was plugged in). This morning, I look to see why my phone hadn't alerted me for work. It turns out that all of my entries (except for birthday associated with contacts) have disappeared! Can someone tell me what went wrong and how to get them back?
  • Why did my iPhone delete all my contacts? I picked my iPhone 4 up to reply to a text message, and when I tried to open that message my phone froze and wouldn't open my message, phone, Bing or Google apps. I had to turn the phone off in order for the apps to open, and when they did all of my contacts were gone. What could cause this?