In Pictures: 20 clever apps and services that make great use of the Cloud

Lots of mobile apps and Web services are available to help people who want all their digital content - not just documents - at their fingertips at any time. We look at 20 that are fun, useful, or both.

Eyeona

Category: Shopping

Why You Need It: A free mobile shopping app and website currently in beta, Eyeona helps shoppers save money by tracking price-protection policies and price fluctuations. With most retailers, if a product you buy goes on sale shortly after your purchase, they will refund you the difference. Eyeona makes it simple to get that cash back by snapping a photo of the receipt, which Eyeona stores in the cloud through a personal receipt manager. If a purchased item goes on sale within the retailer's policy window, Eyeona will alert you via email so that you can bring the receipt to the store for a price adjustment.

Eyeona | Free | Android, iOS

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