Rough Guides travel content is being made available through the new mobile application Whatser.
Information on Paris, London, Amsterdam and Rome is available, to be followed by Barcelona and Berlin and further destinations planned in 2011.
The Whatser location-based mobile app that suggests where to go based on places users and their friends like was launched recently by technology company SeGeo.
The Rough Guides content is available to view free of charge for one year to users who sign up before December 31.
A one-time fee of €2.99 per city and per year will apply after that date.
In addition to the general reviews of top attractions, Rough Guides also offers its ‘Not to Miss’ and ‘Authors’ Picks’ selections through Whatser.
Users can follow friends to receive personalised suggestions by connecting existing social networks from Facebook, Twitter, Gowalla and Foursquare to their Whatser account.
The Rough Guides content can be found by following Rough Guides under the friends tab.
Rough Guides marketing manager Liz Statham said: “Today’s traveller wants information that they can trust, available to them in whatever format best meets their needs.
“Rough Guides are known for telling it like it is and we’re pleased that users can now access our information via the Whatser app, offering the usual Rough Guide blend of trusted content and travel inspiration for Europe’s top cities.”