Update March 2013:
In its latest update, it looks like the developers of Airfile have decided to cripple all the features I display below for all new and existing users (unless you upgrade to its Pro account for $4.99). This can be avoided if you already had the app and do NOT update the app. Pretty sneaky for them if you ask me. They did not mention any sort of PRO account in their update details. This is the primary reason I carefully choose which apps to update, and never choose “Update All”. I guess if you have a lot of different cloud accounts (Box accounts were added), $4.99 is still a decent deal.
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Airfile is a third-party Dropbox file-manager application for iPhone, iPad, and iPod touch. I am sure you will be impressed with what it can accomplish for your Dropbox account.
I shared with you my thoughts on Drop Manager for Dropbox a few months ago. I'd like to now let you know about AirFile for Dropbox. This universal app, in my opinion, is even better, and might even be more handy than the actual Dropbox app for iPad/iPhone.
Within the Dropbox app, you are not able to rename and move files. Most people will probably do those actions on their computers. Drop Manager does allow you to do that. Where AirFile beats both Drop Manager and the Dropbox app is that you can add as many separate Dropbox accounts onto it.
What's the purpose of having more than one Dropbox account?
With AirFile, you can manage all of your files within an unlimited amount of accounts, all from your device! You are able to move files effortlessly from one account to another. Signing up for extra Dropbox accounts just requires a separate email address. This would be an easy and unique way to get more storage space without much effort. (We know that there are more conventional ways of increasing your Dropbox, through referrals and purchasing extra storage.)

You can see above that I have linked FOUR different accounts. On the iPhone, you will be able to choose files (more than one at a time) and move or copy them to other folders. Even better, on the iPad, it shows a split screen so it is super easy to move files from one account to the other. You can also create new folders within the same account and move files into the different folders as you wish.
You are also able to view files like you would in the Dropbox app. Sharing the link to others and opening the documents in other apps is also a cinch. What I noticed that's also better on AirFile is you can actually email attachments (perhaps to people who are not “savvy” Dropbox users). Some people would still prefer to receive actual attachments instead of download links.
Another advantage of the multi-account system is that you can have different family members link their accounts, taking away the need to sign-out and sign-in each time. This would be useful if two or more people share a single device. Files can be copied, moved, deleted and renamed.
How to begin:
1. Download AirFile.
2. Connect your (first) Dropbox account and allow AirFile access to it:
