Comprei a versão para Android.
Para um utilizar no iPhone terei que pagar novamente? Existe a possibilidade de isenção ou desconto?
From Litchi’s FAQ:
You can install the app on as many devices as you want as long as they use the same platform and the same “main” account (Google, Apple or Amazon) that was used for the original purchase. If you wish to use Litchi on two or more platforms you will need to purchase it on each one.
They are 2 separate apps. They are developed for 2 different operating systems. They just coincidentally have the same name.