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Word Lens is an augmented reality translator which uses the phone's built-in camera to identify text (such as a sign or a menu) and have the words translated to another language. It also includes a dictionary tool. The only downside is that the app sometimes struggles to "read" text in non-standard fonts. Word Lens is free on Apple's iTunes, but an in-app purchase is needed to enable translation capabilities. On Google Play, the free demo and the full translation-enabled versions are available.
Câmbio Legal is an iOS and Android app released this month by the Brazilian Central Bank to enable tourists to find the nearest currency exchange desk authorized by the instituition. The tool covers 12,000 exchange desks across the entire country and lists address, phone number, opening hours and the services available, such as money exchange and ATMs.
If you happen to stop by São Paulo, the biggest city in Brazil, during your Confederations Cup visit, SP Mobile is a useful app. The tool was developed by local agency WebTraffic for the São Paulo Tourism Board (SPTuris) and offers information on hotels and restaurants, city parks, clubbing and cultural attractions as well as useful telephone numbers, tourist information services and maps.