Guides.

What you need to know to use AI without handing over your data: how it runs on a phone, what apps really send, which model to choose.

• How to run an LLM locally on your iPhone

  Can you run ChatGPT-style AI offline on an iPhone? Which iPhone, which models, which apps and what limits to expect: a clear, sourced guide.

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• What AI apps really send about you

  What ChatGPT, Gemini, Claude, Copilot, Meta AI and Vibe collect, how long they keep your chats, whether they train on them and how to opt out.

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• Which AI model is best for my iPhone?

  Which on-device AI model fits your iPhone: RAM for every model, storage needed, Gemma 4 E2B vs E4B, 4-bit vs 2-bit. Clear tables and recommendations.

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