Roomer, a service for people to buy and sell unwanted non-refundable hotel reservations, has just launched its first native mobile apps for iOS and Android. Available now, the company said the first iteration of the_app only allows_prospective travelers to search and book discounted hotel rooms, rather than also allowing users to sell non-refundable hotel room_which they_no longer_require._The Web platform does allow this, however, and Roomer says this feature will be built into the mobile app over time. To_ensure that the buyer and seller feel confident in making a transaction, Roomer said it has put a validation system in place. Once...

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