Are there any fee for your mobile apps? You can download our iPhone app from App Store and Android app from Google Play for free. Related articles How can I pick up the tickets I purchase through your mobile applications? Istanbul Biletix Retail Outlets In which languages can I use Biletix mobile applications? When I call Biletix Call Center by using Biletix mobile applications, is any cost added to my invoice? I lost my tickets but I remember the seat numbers. Can I enter the venue without my tickets?