On-device AI · iPhone 15 Pro +

The friend who
never tells

A personal AI companion that runs entirely on your iPhone. Your conversations never leave your device — not because we promise it, but because there are no servers to send them to.

Download on App Store FAQ
// Zero data collected — not even crash logs
// Works offline after initial model download
// No account required — open and talk
// Delete everything by deleting the app

// how it works

Private by construction,
not by policy

01Hush runs Google's Gemma 4 language model directly on your iPhone using Apple Silicon. Every word the AI generates happens on your chip — no network call, no cloud API, no third party in the loop.

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ON-DEVICE INFERENCE
Gemma 4 runs via Apple's MLX framework on the A17 Pro chip or newer. The model never touches the internet after download.
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AGENT MEMORY
01Hush builds a private picture of you over time — your work, your relationships, your patterns. Stored locally. Resets instantly in Settings.
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NO ACCOUNT, NO LOGIN
Nothing to sign up for. No email, no password, no profile synced anywhere. Open the app and start talking.
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HONEST ANSWERS
The agent's default is to be useful. It leads with the answer, not empathy. It won't deflect the hard questions.
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COMPLETE CONTROL
Clear chat history, reset agent memory, or delete everything — all from Settings, all instant, all permanent.
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OFFLINE BY DEFAULT
After the one-time model download (~1–2 GB), 01Hush works with no internet connection at all.

// pro

Go further

Pro unlocks additional capabilities. Everything core remains free.

PRO

A Pro subscription gives you access to features that go beyond everyday conversation. Billed through Apple. Cancel anytime.

  • 18+ Mode — removes content filters for mature and sensitive topics
  • Extended memory — deeper, longer-term context about you
  • Priority model updates — new model versions as they release
Get 01Hush