Your quiet corner
for warm clarity.
Meet Phos, a private AI companion for thinking, writing, studying, and deciding. Start locally on your Android phone, bring your own key when you choose, or connect to your own local server.
No account needed.
Runs offline in seconds.

Yourunfinishedthoughtsdeserveaquietplace.Phosstartswithlocal-firstprivacy,noaccount,noads,andmemoryyouchooseyourself.Uselocalmodelswhenyouwantfullcontrol.Bringyourownkeyorlocalserveronlywhentheextrareachisworthit.Theboundaryshouldalwaysbevisible.
See the real boundaries
Toggle the same product concepts Phos uses in the app: local model, BYOK, local server, app lock, local tools, memory, and generation settings.
Running locally with a downloaded model
Chats, memories, and selected local model metadata stay on this device. No company-hosted inference is involved.
Built around how you actually think.
Not another chatbot wrapper. Phos is a private thinking space designed around real workflows.
Conversations that stay yours.
Ask about private notes, startup ideas, study questions, or a difficult message. In local mode, your thread stays on the device. In BYOK or local-server mode, Phos shows the boundary before anything leaves.

Always alive. Always yours.
Start thinking in one tap.
Your models. Your rules.
Locked down. Fully yours.
App Lock
Biometric or passphrase gate
Secure Keys
Provider keys stay in secure storage
Quiet Reports
Diagnostics are user-triggered
Set up in 30 seconds.
No login. No signup form. No credit card. Just open the app and start thinking. It's that simple.

Start thinking clearly.
A private, local AI companion for the thoughts you don't want on someone else's server.
Free, public source, no login, no ads, and no purchases in V1.