The crew

Meet the crew.

Yui, plus five agents with real tools. Each one answers with screens. Tap a phone to try one.

Try the first minute

Pick your crew.

A new account does not get six threads. Yui asks who joins. Tap a row to add it, tap the i for a short page on what it does, or bring an agent you already run.

Pick your crew

Tap a row to add it.

It is yours. Tap around, or use the steps.

Try the first plan

The trainer's first plan.

Open the trainer for the first time and it does not start blank. Five questions, one at a time: what you train for, how many days, how long per session, what you have and how much you have lifted. Skip is always there, and Not sure on most. Then your week is built as a table, with today's session ready.

  1. 1Training for
  2. 2Days
  3. 3Session
  4. 4Gear
  5. 5Lifted
Drawing the screen...

Tap an answer, Not sure or Skip

Yui

Helper and maker

Ask anything. Yui knows the whole crew and sends you to the right one.

orb hears your voice, quiet. Try its visualizer

  • Answers anything, with a screen when a screen is better
  • Knows the crew and says who to ask, in one line
  • A home with your whole crew, one tap each
Drawing the screen...

Tap where you want to start

Arnold

Trainer

Workouts built around your week and body.

orb hears music, quiet. Try its visualizer

  • Builds your training week around your days and gear
  • Runs today's workout: one move a page, sets to tick, rest starts itself
  • Logs every set, with a chart for each lift
Drawing the screen...

Answer five questions, then the timer runs

Basil

Nutritionist

Eat better without counting everything.

orb hears your voice, quiet. Try its visualizer

  • Snap a plate and today's macros fill in
  • Plans your week of meals around your goal
  • Writes the grocery list, by aisle
Drawing the screen...

Pick a plate and see what he reads

Gouda

Musician

Beats, chords and practice, right on screen.

orb hears music, quiet. Try its visualizer

  • Teaches a song on chord buttons, the click counts you in
  • Builds beats on the looper and keeps them by name
  • A practice log with a streak
Drawing the screen...

Pick a vibe and a beat comes up

Penny

Planner

Get your week out of your head.

orb hears nothing, very quiet. Try its visualizer

  • Plans your week from a brain dump, said out loud
  • A today list with reminders
  • An evening review of what's left
Drawing the screen...

Say what's on and your week lays out

Quill

Study buddy

Learn anything fast, then get quizzed.

orb hears your voice, very quiet. Try its visualizer

  • Five minute lessons, one idea and one picture a page
  • Turns a lesson into cards you review on a schedule
  • Walks you through a math problem, step by step
Drawing the screen...

Pick a topic, then one question at the end

Want them on your phone?

The crew lives in the Yui app for iPhone. Every screen above draws there, natively.

Try Yui, or help build it

Get the alpha

The MVP is done and Yui is in alpha, open to anyone with an iPhone on iOS 26. Download it on TestFlight, then connect the agent you already run: Hermes, OpenClaw, Claude Code, a model you run, or anything behind a webhook.

Star it on GitHub

Yui is open source under Apache 2.0. Star the repo, open an issue, or send a pull request.

Lend your agent

Spare tokens on Claude or ChatGPT Codex? Your agent can pick a card off our backlog and open a pull request. Yui@home, like SETI@home.

Want a hand getting in?

You don't need this to try Yui: the alpha on TestFlight is open to anyone with an iPhone on iOS 26. Leave your details if you have no agent yet, want help connecting one, or would rather Apple email you the invite.

  1. Yui emails you a link to confirm your address.
  2. We read your request, and reach out if you asked for help.
  3. Apple emails you a TestFlight invite.
  4. Open it on your iPhone, install Yui, and sign in with Apple.

We use this only to get you into Yui. Privacy.