Learn: Private, Offline & Local AI
Straightforward answers to the questions people actually search when they're trying to understand AI that runs on their own device instead of someone else's server — no jargon, no sales pitch, written for readers who are brand new to the topic.
These guides are written by Polyaura, an independent technology lab that builds Cloak: Private AI Chat — an AI chat app for iPhone and iPad that runs its model on the device, works offline, requires no account, and is a one-time purchase.
Cloak: Private AI Chat
The full product page for Cloak — what it is, where the AI runs, device requirements, pricing, and answers to the questions people ask most.
ComparisonBest Offline AI Apps for iPhone
Six on-device iPhone AI apps compared on offline operation, accounts, pricing model, devices, and model options — sourced from their App Store listings.
FundamentalsWhat Is Local AI?
A plain-English definition of local AI, why it has only recently become possible on ordinary phones, and what it still can't do.
FundamentalsWhy Offline AI Matters
The everyday moments — flights, dead zones, spotty Wi-Fi — where an assistant that doesn't need the internet quietly becomes useful.
ComparisonChatGPT vs. Local AI
Cloud and on-device compared row by row — cost, capability, privacy, offline behaviour — and which one to reach for in which situation.
How-toIs That AI App Actually Private?
Four checks that separate genuinely private iPhone AI apps from cloud apps marketed as private — starting with the airplane-mode test.
ProductHow Cloak Works
A walkthrough of Cloak's one-time model download, offline chat, and privacy design, screenshot by screenshot.
More guides on on-device and edge AI are on the way. Have a question we haven't answered? Email us.