This is a sponsored post of the app Hostelworld.com – it is sponsored in so much as it’s a paid for post. Our review and opinion of this app are not biased in anyway. Hostelworld allows you to search fast over 27,000 hostels in more than 180 countries and it comes packed with a huge array of user reviews to help you make a selection – this is hugely valuable. The app is simple and straightforward to use, just set up an account on via your email address and add a password and then log in and start searching and/or booking immediately.  Hostelworld prompts you to search by city or…