Next up is a list of the best iPhone 4 apps you can find – this means the most useful, that will you will probably gonna need to use often.

 Skype – this is another way to stay connected to everything that's happening. Skype can be found in many languages, including English, German, Japanese, and so on. Use it to hold conversations via microphone. It will be a useful tool when you are away from home. Check it out by visiting this page.

Facebook Mobile app -  the popular networking site can be download on your iPhone 4, and you can constantly stay in touch with your friends, chat and post on their wall. You can get it from the iTunes store, for free.

DropBox iPhone App – a great interface app, it's fr free and it gets you 2 GB of storage space. A must have for people who are picky about their files, and scared of losing them. Check it out here.

IMDb iPhone App – if you are a movie fan and you can't stay away from the latest releases, this is what you should get! The image will be crispy clear, and you can buy this app for less than US $1. Follow this link.

Photoshop Express iPhone App – there are time when you are no satisfied with how picture looks like, or what you look like in it. Then use this popular editing tool to adjust and change whatever you wish. Check it out here. And best of all, it's all free!

Camera+ iPhone App – because we talked about editing pictures, how about a tool to help you take the best pics that don't need editing? This app will do it for you – and you only have to pay US $0.99. You can get it from this page.