ViewNX-i is not available for iPad but there are some alternatives with similar functionality. The best iPad alternative is Adobe Lightroom. It's not free, so if you're looking for a free alternative, you could try Apple Photos or Mylio. If that doesn't suit you, our users have ranked more than 25 alternatives to ViewNX-i and six of them are available for iPad so hopefully you can find a suitable replacement. Other interesting iPad alternatives to ViewNX-i are ACDSee Photo Studio (Paid), Priime (Freemium) and CyberLink PhotoDirector (Freemium).
ACDSee is a complex, multi-purpose application that serves for viewing, organizing and editing digital photos. Furthermore, images can be shared on social websites or your own space on the developer’s website.
Priime offers filters as a way for mobile photographers to apply looks to their images with a tap of the finger. The app goes beyond apps like Instagram, however, with features such as filter suggestions and a filter marketplace.