I can't update or download apps in iTunes

I got the screenshots you sent. Do you have any restrictions for purchasing apps on the phone? Settings > General > Restrictions. If you have a Mac computer or another Apple device can you purchase things in the App Store using the same Apple ID on something else?

Have exactly the same with my iPad 3, I'll try to reinstall tonight, (64 Gb) think the problem is the Cisco router, no upnp or mdns. Have no airplay etc. with the timecapsule everything is working fine. The problems occurred when I changed to the new Cisco router from my provider (ziggo)

this cant be true!!! i just bought the iphone 5. i also own an imac (10.5.8) im trying to sync my phone with itunes but it is saying that i need to upgrade to the latest version of itunes..heres where it gets awesome! i cant download the latest version of itunes cause my imac has to be (10.6.8)..hahhaha!! i talked to support and they said i have to purchase for a few hundred dollars the newer version for my desktop!! im returning the phone 2moro and going with something different!!! BULLS#$%!!!!!

I also cannot download anything. Click on the 'free' button, then the 'install' button and it just cycles back to 'free'. This is on both my iPhone and iPad. Also does not work in iTunes. Comes up with an error message:

---Could not purchase "(app name here)". An unknown error occurred (-50). There was an error in the iTunes Store. Please try again later.---

I am having the same issue. About an hour ago I tried downloading the free Target app. It kept stalling out and never asked for my password or anything. I reset the iPhone 5s with IOS 7 and had the same issue. I went into settings and signed out of the iTunes store and restarted the phone. Next I tried signing back in and now it says I can't access iTunes. This happens on both WIFI and LTE. Next I went to my PC and through iTunes I located the same app. I tried downloading and it asks for a password. When I input the info it gives me an itunes error (-50). I can verify that I can log on to my Apple ID through appleid.apple.com.

I am going to guess it is not the device since I am having the same issue. So how did it get resolved? Did you call customer service?

I am having the exact same issue after updating my iPhone 5 with a 5s. Its also affected my iPad which was working fine before even though i never touched it. It has to be something on the account!! Any had this and fixed it??

I have the exact same issue so this tells me it is probably an itunes issue. See my other post here to see what exactly happened but it's basically the same.

Do you mean after updating to ios 7? I have been using ios 7.0.2 for a week now on the new iphone 5s so I can only assume the update from ios 6 -> ios 7 isn't causing this but an issue on apples end.

There is a problem and they have finally updated their status page!!

http://www.apple.com/support/systemstatus/

could of been a bit more prompt as that was first place i checked and thought was my fone.

Working again... Phew not new phone then

I was just coming here to post that it was an Apple issue and link to the same source! Mine is back working too!

I had the same problem where when clicked to download it wouldn't do anything and go back to price. I'm not sure if ya

Found an answer but I went to setting and restrictions then

I turned it on then off and it was now downloading everything perfectly.

I hope this post will help this situation.