Yes, InfinitiKloud App is needed for users to easily backup and organize files.

For iOS & Android mobile device users, the app can be downloaded via iOS App Store & Google Play Store. Search “Infiniti Kloud” on the App Store or Play Store, find the app listing, then click “Download”. 

For PC and Mac users, the InfinitiKloud Application is already pre-loaded on the InfinitiKloud device

https://www.infinitikloud.com/download-app.html