Nivon AI is an application that transforms an iPhone into an advanced AI tool prioritizing user privacy. The app is unique in its feature of keeping all data strictly on-device, with no reliance on cloud storage or third-party access.

This ensures that the user's data stays completely on their own device, providing a personal and secure AI experience. Moreover, post the initial setup, Nivon AI allows offline usage giving users the flexibility to access its full range of features without requiring an internet connection.

In terms of compatibility, the app necessitates an iPhone 13 Pro or a more recent model with at least 6GB of RAM. It supports only English language and requires a subscription to access the service.

As with any AI tool, users should also apply personal judgement as the AI can occasionally make errors or misinterpret information.