Korsisaari is a free Android app developed by iQ Payments that offers an easy and convenient way to purchase tickets for public transport. The app is specifically designed for Korsisaari companies and allows users to buy single, multi, and season tickets. Additionally, Korsisaari offers Duo tickets that are valid in HSL (Helsinki public transport) area.

One of the main features of Korsisaari is its versatility in payment methods. Users can use all the most popular digital payment methods to purchase tickets. The app also provides current traffic announcements and news. Users can take advantage of the app without registering an account, but registering a user account unlocks all payment methods and features including sign in with Google.

Korsisaari is an excellent solution for anyone who uses public transport operated by Korsisaari companies. The app is user-friendly, and the ticket purchasing process is straightforward. Moreover, the app provides all the essential information that a public transport user might need.