Your AI.
On your device.
Private AI chat on your iPhone, and live control of agents on your Mac through Herdr. Offline by default. No account. Nothing sent to anyone else.
Answers that stream in.
See the whole conversation.
Private. Works offline.
Private by default
Your conversations stay on your device.
Lochan runs AI models directly on your iPhone and iPad. Use Apple's built-in on-device model, or download open models like Qwen, Gemma, and Llama and chat with them fully offline. No account. No cloud round-trip. Nothing sent anywhere.
One app, every model
Pick the right model for the moment.
Apple's built-in model
Instant and offline, right out of the box.
Open models
Download Qwen, Gemma, Llama, Phi, and SmolLM and run them on your terms.
Switch anytime
Change models per conversation, straight from the chat.
The river view
Conversations that branch, not overwrite.
Regenerate or edit any message to fork a new branch instead of losing the old one. Then pinch out to see the whole conversation as a flowing river - trunk, tributaries, and every path you explored - and tap to jump anywhere.
Through Herdr
Your agents, from anywhere.
Lochan talks to Herdr, the runtime your coding agents already live in. When one stops to ask on your Mac, you get the real terminal on your phone. Read it, answer, keep going. Works with Claude Code, Codex, Aider, Gemini CLI, Goose, and anything else that runs in a shell. Your code and keys stay on your machine.
See who needs you
Blocked, working, done, and idle - so one glance tells you where to look.
A real terminal
Tap an agent and type into the actual session, not a status page.
Your machine, your keys
Lochan SSHes to a Mac you own, running Herdr. Nothing of yours sits on a Lochan server.
Pair Lochan with a Mac that's running Herdr:
curl -fsSL lochan.app/herdr-setup | sh
Lochan uses Herdr, the runtime coding agents run on. Herdr is not a Lochan product.
See who needs you.
The ones waiting on you.
Answer from anywhere.
See, hear, and more
Understands more than text.
Attachments
Add images, PDFs, and text files and ask about them.
Read aloud
Hear replies in natural voices - pick the voice and speed.
Share without giving it away
Send a conversation, keep it private.
Lochan encrypts a conversation on your device before it ever leaves. We can't read it, and neither can anyone but the person you hand the link to. You preview exactly what's included, links expire automatically, and nothing is shared unless you choose to.
Built to feel good
Calm, fast, and crafted.
Smooth streaming
Answers arrive like a person typing.
Clean rendering
Markdown and code blocks, done right.
See the reasoning
Open the thinking view whenever you want it.
Alpine-forest theme
A calm design in light and dark.
Private AI, on your terms.
