YUI-211

A sleek sans for the whole app

Yui's base type is now a clean sans with a real scale: nine sizes, semibold headings, tabular numbers on timers and counters. It follows the text size you set on your phone. Serif is still a look an agent can wear, never the base.

Three faces, same screens

Thread, stage line, card and drawer rows in each. Light on the left, dark on the right.

SF Pro (base)

The system face. Free, native, Dynamic Type for free. Recommended.

Wizard
Three drawer mocks are ready. Calm list, playful tiles, or peek and tabs.
Peek and tabs, please.
Leg day
Five moves, 40 minutes
Start 45:00
Today 9:41 AM
Chicken and rice, about 384 kcal.
UrzaFleet is quiet. Nothing needs you.
ArnoldLeg day is ready
Wizard
Three drawer mocks are ready. Calm list, playful tiles, or peek and tabs.
Peek and tabs, please.
Leg day
Five moves, 40 minutes
Start 45:00
Today 9:41 AM
Chicken and rice, about 384 kcal.
UrzaFleet is quiet. Nothing needs you.
ArnoldLeg day is ready

Inter

Bundled font file (about 300 KB). Slightly wider, very even.

Wizard
Three drawer mocks are ready. Calm list, playful tiles, or peek and tabs.
Peek and tabs, please.
Leg day
Five moves, 40 minutes
Start 45:00
Today 9:41 AM
Chicken and rice, about 384 kcal.
UrzaFleet is quiet. Nothing needs you.
ArnoldLeg day is ready
Wizard
Three drawer mocks are ready. Calm list, playful tiles, or peek and tabs.
Peek and tabs, please.
Leg day
Five moves, 40 minutes
Start 45:00
Today 9:41 AM
Chicken and rice, about 384 kcal.
UrzaFleet is quiet. Nothing needs you.
ArnoldLeg day is ready

Geist

Bundled font file. Geometric and a little cooler.

Wizard
Three drawer mocks are ready. Calm list, playful tiles, or peek and tabs.
Peek and tabs, please.
Leg day
Five moves, 40 minutes
Start 45:00
Today 9:41 AM
Chicken and rice, about 384 kcal.
UrzaFleet is quiet. Nothing needs you.
ArnoldLeg day is ready
Wizard
Three drawer mocks are ready. Calm list, playful tiles, or peek and tabs.
Peek and tabs, please.
Leg day
Five moves, 40 minutes
Start 45:00
Today 9:41 AM
Chicken and rice, about 384 kcal.
UrzaFleet is quiet. Nothing needs you.
ArnoldLeg day is ready

The scale

TokenSizeWeightTrackingUsed for
Display34 ptbold-0.6Screen titles, big answers
Title 128 ptbold-0.4Sheet titles
Title 222 ptsemibold-0.2Agent names, card titles
Headline17 ptsemibold0Row titles, buttons
Body17 ptregular0Messages, paragraphs
Callout15 ptregular+0.1Card body
Subhead15 ptmedium+0.1Row subtitles
Caption13 ptregular+0.2Timestamps, hints
Footnote12 ptregular+0.3Fine print

Each token rides a system text style, so it grows with Dynamic Type up to the accessibility sizes. Looks that choose serif, rounded or mono still apply per agent, on top of this scale.

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.