
Scansfer just hit the Android Market last night. Scansfer uses QR code technology to allow users to scan and transfer files from phone to phone, phone to computer, and computer to phone.
If you have a file that a friend wants, you simply choose the file and Scansfer securely uploads the file to the Scansfer site and generates a private download key. It will only be accessible by scanning the QR code that is generated. Your friend scans the QR code and the file will be downloaded to their device. If you want to upload the file to your computer you just simply log in to your Scansfer account from your computer to retrieve the file.
Let me first say that this application is really only for the techie or geek. In fact they even admit that in their product description. There are a lot of other applications for file sharing and this won't be for the mainstream. In order to use the app you will need a bar code scanner, a file explorer app, and obviously the Scansfer app. If you are a techie then you most likely have the first two installed, so you might find this to be a unique and fun way to transfer files.
Lets face it there are a lot of apps that fall into the designation of cool, but probably not necessary. This is one of them for sure.

Full description from the developer:
Scansfer is a fast, easy and secure way to share files between mobile
devices.
Scansfer is a unique app utilizing mobile QR code technology to allow users to simply scan and transfer files from
phone to phone, phone to computer, or computer to phone.
The Scansfer app securely uploads files from your phone to
scansfer.com, and generates a private download key, only accessible by
scanning a distinct QR code. The QR code can then be scanned from any
other mobile device equipped with a camera and bar code scanner app to
instantly download the file. The app can also upload files from your
phone to Scansfer.com to be downloaded to a PC, plus the website
allows you to generate QR codes to download files from your computer
to your phone.
Before Downloading, please read the following requirements to use Scansfer:
Requirements to send files from your phone to another phone
1. Scansfer App for Android
2. Strong Internet Connection (3g/4g or WiFi)
Requirements to send files from your phone to a PC
1. Scansfer App for Android
2. Strong Internet Connection (3g/4g or WiFi)
3. Scansfer.com Account
Requirements to receive files on a phone
1. Camera
2. Bar Code App capable of reading QR codes
3. Strong Internet Connection (3g/4g or WiFi)
4. File Explorer App (recommended to manage unsupported file types)
Limitations:
1. Files must be less than 5 MB
2. QR codes expire after 15 minutes
3. File uploads are deleted after 15 minutes
Also, please keep the following things in mind:
1. This is a brand new app, and we know it has some bugs. We are doing
our best to fix them as fast as we can, but we think it’s such a cool
app, we just couldn’t wait to release it. We ask for your patience as
we work out all the bugs, and we’d love it if you would help us by
sharing your experiences with us on our forum.
2. This app is not for everyone. We know it’s kind of geeky, and not
everyone has a bar code scanner app, file explorer app, etc. Plus, a
lot of people may be wondering, “why in the world would I want to
transfer files on my phone”? We think it’s cool, but that’s because
we’re nerds. We’d love to have everyone and their mothers try it, but
please be aware that this app is fairly techie, and may require some
patience to make it work for you.
Please visit https://scansfer.com for more information on how to use Scansfer
or to request help if you are experiencing difficulty. You’ll find
tutorials, FAQs and a support forum to answer all of your questions.
Thanks for sharing this info Robert. But I find ApowerTrans more convenient. It lets me transfer file from one phone to another even without Internet connection. It is also free and very easy to use.