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Herald
Zero.

byMundus

A focused e-ink companion powered by APEX Model — filtering the noise while leaving every decision to you.

Mundus launch poster featuring the translucent e-ink companion

Your phone shouts.
Herald edits.

It reads the flood, keeps the useful parts, and turns them into a handful of calm, actionable cards.

Messages, email and calendar context are summarized by the companion app. Herald Zero brings the few items that genuinely need you onto a quiet e-ink screen. Everything else stays out of sight.

APEX
Model.

Ambient Proactive Execution Model

The agent orchestration technology behind Herald Zero.

APEX Model brings ambient context, proactive intelligence and deliberate execution into one focused system. It notices what matters, proposes the next move and keeps you in control before anything happens.

A

Ambient

Understands useful context from your notifications, email and calendar through the companion app.

P

Proactive

Surfaces a timely suggestion before you need to dig through apps or ask the obvious question.

EX

Execution

Turns that suggestion into a clear, reviewable action — with the final decision behind two physical keys.

Herald Zero shown from the front, back, USB-C side and scroll-wheel side

Less screen.
More signal.

A translucent pocket companion with paper-like e-ink, two contextual keys and one tactile wheel.

One card at a time

Scroll between AI summaries and suggestions. Press the wheel when you want the detail.

Contextual soft keys

The screen tells the two physical buttons what they do. Accept, dismiss, snooze or respond without hunting through an app.

Bluetooth, deliberately

The companion phone app handles connectivity, pairing, preferences and credits. The device stays focused.

Email + calendar context

Read, summarize and surface proactive reminders when they become useful.

A hand holds the pocket-sized Herald Zero beneath a focused overhead light, with the Mundus mark on its e-ink screen

Out of
the noise.

A pocket-sized window for the few things that matter.

Herald Zero · by Mundus

AI suggests.
You decide.

Tap either physical key below. The labels change with each card — because the hardware adapts to the moment, not the other way around.

10:30 · Tuesday
● AI SUGGESTION

Review today’s tasks

Prep for 3pm client call · 30 min

1 / 3
DismissStart

A focused device.
Not a magic trick.

No universal agent. No tiny-phone cosplay. Herald Zero does one job: turn digital noise into a few decisions you can make and move on from.

Will it replace your phone?

No. Your phone handles connectivity, accounts and the companion app. Mundus handles the moments that actually need your attention.

Does it do everything?

Also no. It filters notifications, summarizes email and calendar context, then puts suggested actions behind two physical buttons.

Why only two buttons?

Because every accept or reject is a useful preference signal. Over time, your choices teach the priority model what matters to you.

Can I buy it today?

Not yet. Herald Zero is still being engineered. Final specifications, availability and pricing will be announced when they are real — not before.

What it leaves out

No social feeds
No camera
No browser
No calls
No endless apps
No attention trap

A quieter interface to your digital life.

Basic device functions are planned to be free, with additional AI usage available through credits or a subscription.

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