This small size app expands adf.ly URLs. No need to wait for 5 seconds.
Adfly decoder app is listed in app hunt.

How to use?
Tap on any adf.ly URL anywhere in your phone and then select adfly decoder as shown in screenshots then URL will be decoded and you will be redirected to the decoded URL. After installing you can test the app by clicking any test URL.

Test URL 1: http://adf.ly/1nCa24
Test URL 2: http://adf.ly/1lziiZ
Test URL 3: http://adf.ly/HmtTG

Multiple URL Decoder:
You can also expand multiple URLs in a single tap. Just enter URLs line by line and tap decode. Done :)

Purchase Adfly Decoder Pro for more features.