10 free Android apps for staying in the know

Owning an Android smartphone means never having to say 'I don't know'

FactBook

Travelers, people doing business overseas and the just plain curious will find a wealth of information about every country in the world in FactBook, a version of the CIA's World Factbook Web site adapted for the Android by Urbian Inc. Updated regularly, the CIA World Factbook profiles each country, giving an overview of its political system, economy, demographics, customs, geography and climate -- all invaluable information for building affinity with new clients in foreign counties you know very little about.

All this information is stored in the FactBook app so you don't have to be online to access it; the data is refreshed twice a year from the World Factbook site, according to the developer. Each entry in the app includes a button that opens the relevant page in Wikipedia for even more information, but for most questions, FactBook offers more than enough information.

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