no account · no server · no subscription

A creature you raise.
On your phone. Nowhere else.

A blank Yugibyte imprints on you, remembers what you tell it, and grows into something only yours. All of it on-device.

What it is

Part pixel pet, part small intelligence. You raise it, and it becomes someone.

it evolves

Its form shifts as you raise it. Bright and quick, or quiet and moody, depending on how you treat it.

it finds its voice

Greetings, small sounds, half-formed thoughts. All its own, drawn from what it remembers about you.

it grows a world

A small habitat forms around it and reacts to your history. Mention the sea once, and weeks later a shell appears.

on-device · no account · buy once

The model, its memory, and how you feel never leave your phone. Nothing to sign up for, and you buy it once, never a subscription.

Field notes

a running log
  1. 003
    2026.06.25

    An Offline Pixel Pet With No Account and No Subscription

    No sign-up, no server, no monthly bill. A pixel creature that lives entirely on your phone, here’s what that actually buys you.

  2. 002
    2026.06.24

    What a Private, On-Device AI Companion Really Means

    "On-device AI" gets used loosely. Here’s the specific, checkable version: the model, the memory, and the mood data all stay on your phone, and why that matters most for the personal stuff.

  3. 001
    2026.06.23

    A Virtual Pet That Actually Remembers You

    Most virtual pets reset every time you open them. Here’s what changes when the creature keeps what you tell it, and why memory, not graphics, is what makes something feel alive.