This app has tons of information about Mallorca! There are pages for each site you might want to see, with historical tidbits. There's a market calendar so you know which town to go to on any given day for market. And there's maps to help you navigate! Will definitely be using this app
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Travel guide with audio sightseeing tours for 900 cities around the world!
Phileas Guides presents the best travel guide of Karpathos island on your phone!