.bnito Big Brain
UI + motion spread · v2 · 24 Oct 2026

Keep the
thread.

Every screen, state and move in one place. A HUD of light around the mark: it boots, listens, thinks and folds away, and the mark moves with it.

InstallWelcomePrivacySpeechPick AIWatch or phone Start listeningTap for helpAnswerDone or StopHistory
Live prototype

Tap the phone
or the watch.

Both run one session, as in the real app: the watch only shows what the phone has confirmed. Start listening, then tap Big Brain.

    Haptic
    Answers: 0 of 5 · hints on
    00

    Gaps

    What the app does today, read from the code on 25 Oct, against what this design does about it. The right-hand column is the build work.

    Where a new user gets stuckThe app todayThis designThe build needs
    No watch, no helpYou can only ask from the watch. The phone has no Ask anywhere.The icon on the phone asks for help too. First run has a branch for people without a watch.Screens 08, 10, 06aWire the phone’s icon to the same help request the watch sends.
    No answers by defaultApple’s on-device model only recaps the question. Answers need gear → provider → sending on → paste a key.Pick your AI is part of first run and says plainly what each option does. Provider, key and sending are one screen.Screens 05, 05aReady to go needs the Plus server, which isn’t wired in. Until then, Use my own key is the real default.
    Speech model hiddenThe UK English download sits in Diagnostics. Home still says Listening, and every tap gives “No clear question”.A download step in first run, and a “Speech isn’t ready” state that never claims to be listening.Screens 04, 16Check the speech model at launch and before starting, and offer the download.
    Names don’t matchThe icon says “Companion M0”. Errors say “Open Companion on iPhone”. The Action button lists “Companion M0 → StartConversation”.Big Brain everywhere: icon, Live Activity, watch errors, the Action button.Screens 15, 24, 26Rename the display name, the App Intent and its phrase, and the watch strings.
    One error for everything“The AI didn’t reply in time. Check your iPhone has signal.”, even when sending is off or there’s no key.Six problems, each with its own words and one fix.Screens 16 to 21Map each failure to its own state, and stop sending the timeout text for the others.
    No Stop on the watchThe main watch screen can’t stop a session.A small square Stop under the HUD on the watch’s Listening screen.Screens 12, 12bA stop command from watch to phone, confirmed back like start.
    01

    First run

    Six screens from install to the first session, plus two branches. Nothing here assumes a watch, a key or a downloaded speech model.

    BranchesUse my own key goes to one screen for provider, key and sending. No Apple Watch ends on the phone instead.
    02

    Core loop

    Four states. One button in the middle, one line under it, one action at the bottom. The HUD does the talking.

    Loop Done boots the HUD back up into Listening. Stop powers it down to Ready.
    After 5 usesThe coaching drops away. Tap the icon to start, tap it again for help, and Stop becomes a small square. The status words stay, because the state is always said in words.
    03

    Watch

    The same HUD on the wrist, in Space Mono. Start listening and asking for help are separate actions, and the answer stays until Done.

    After 5 usesSame rule on the wrist. The icon starts listening, and the words that only explained it go.
    04

    Problems

    Every failure says what actually happened and offers the one thing that fixes it. No more “the AI didn’t reply in time” for a missing key.

    05

    Around the app

    History, settings and the places Big Brain shows up outside the app: the lock screen, the Dynamic Island and the home screen icon.

    06

    Motion

    Each card loops one transition at its real timing. Lines draw on, spin and fold away. Nothing bounces, and every haptic lands on a visible change.

    Button press

    Scale 0.96 · 90ms · back on release

    ListeningGetting your answer…

    Status words

    Crossfade · 4px blur · 160ms out, 220ms in

    Thursday works for me.

    Sheets and cards

    Ease-out · no bounce · 550ms

    Toggles

    Acid fill slides · 300ms · light haptic