The provided search results do not directly mention the company "Papel" associated with the URLs http://www.papel.com.tr and http://www.linkedin.com/company/papelapp. However, based on general information about companies named "Papel," they often relate to paper or stationery businesses. Without specific details on Papel from the URLs, it's challenging to define their services or target audience. Typically, a paper-related company might offer stationery products or services to consumers and businesses. Their unique selling proposition could involve high-quality paper products or innovative stationery solutions. Further research is needed for precise details.