What is Istanbul Senin? It is a new generation smart city application where the people of Istanbul can easily access all the services they would need. Super City’s Super Application: Istanbul Senin Istanbul Senin is serving all Istanbul residents with dozens of features that would make your life easier. Applications That Make Your Life Easier in One Application! We gathered the services that the people of Istanbul need the most and filled them into İstanbul Senin. Thus, you will be able to a