Siti AI

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Siti AI by Splitfire AB is a native application designed for iPhone, iPad, and Mac users who prioritize privacy. Unlike cloud-based assistants, Siti processes all requests directly on the device using an on-device AI model. This architecture ensures that no personal data, conversations, or queries are ever sent to external servers, eliminating the need for user accounts, sign-ins, or subscriptions.

The app supports a wide range of productivity tasks, including answering everyday questions, drafting emails and messages, brainstorming ideas, summarizing long texts, translating languages, and explaining complex topics. After downloading the initial model (approximately 1–2 GB), the application functions fully offline, making it accessible in areas with no internet connection, such as during flights or travel.

Optimized for Apple silicon, Siti delivers fast responses within a clean, distraction-free interface. The developer emphasizes a “private by design” approach, guaranteeing no tracking, no ads, and no data collection. This makes Siti suitable for users seeking a secure, local alternative to mainstream AI services while maintaining core assistant functionalities like writing assistance and information retrieval.