I thought I would share this. My autistic daughter has a severe reaction to Casein (Milk and Milk Products). Going shopping has been a real pain in trying to figure out what some of the ingredients really are. This app has been a real life saver. It allows you to specify the type of allergy, but it then gives you a Wikipedia read out of what each ingredient is, and made of with a quick upc scan. I don't generally spend $2.99 on an app, but this is the only one that I found that has such an extensive data base, looks good, and works. If you know someone that has food allergies then this app is a keeper. I really love being able to scan when shopping so I don't buy something that my daughter can't have. Can't comment on S4, but works great on my Nexus 5.
I saw PF in Munich 73, when I was stationed overseas. This is the music I would test speakers out prior to purchase, and their performance live is still my ruler for rating other live performances. None so far has met the mark.
Its too bad Google didn't include some of the Nova functionality on the Nexus 5. Just the ability to resize icons would have been welcome. It is the main reason I went back to Nova and purchased the Prime version.