# Qubitchi

> Qubitchi (iPhone/iPad app by David Starling192050412401.)

- Source: https://appshunter.io/ios/app/qubitchi/id6780409604 (this page in markdown: same URL + `.md`)
- Developer: [David Starling192050412401](https://appshunter.io/developer/6780409606)
- Category: Entertainment, Education
- Price: Free
- Age rating: 4+
- Requires: iOS 18.0 · 4 MB
- Languages: American English
- Released: 2026-06-17
- Data updated: 2026-06-25
- User reviews in markdown: https://appshunter.io/ios/app/qubitchi/id6780409604/reviews.md

## What is Qubitchi?

Qubitchi is a virtual pet that's actually alive — because it's a real qubit on an IBM quantum computer.

Most pets are made up. Qubitchi isn't. Adopt one and you're adopting a genuine quantum bit on real superconducting hardware, chilled to fifteen millikelvin — a hair above absolute zero. Its mood is its physics: when the qubit holds a clean quantum state, your pet is thriving. When noise creeps in and the qubit starts to forget — decoherence, the central problem of quantum computing — your pet grows drowsy, unwell, and eventually decoherent. Nothing is faked. Qubitchi is a window onto a real machine.

HOW IT WORKS
• Every reading comes from live IBM Quantum telemetry — coherence times (T1/T2), calibration, and queue depth.
• Health is judged against each qubit's own 30-day baseline, never an absolute scale. Every qubit is different, so a "good" chip at its own normal is just as healthy as a "great" one at its.
• Tap your egg to hatch it, then watch your pet grow from hatchling to adult over days.

WHAT YOU CAN DO
• Adopt any qubit on any available backend — each is its own pet, with its own age.
• Follow a 7-day coherence chart, like a paediatric growth chart for a quantum bit.
• Explore the neighbourhood — the other qubits sharing your pet's chip in IBM's heavy-hex layout.
• Read the diary — a running log of how your pet's mood has shifted.
• Earn badges for real milestones: holding a state past 100 microseconds, surviving full decoherence, bouncing back from a rough spell.
• Climb the Quantum League — live leaderboards ranking every qubit on the fleet by coherence, health, and stability.
• Browse your menagerie — every qubit you've ever adopted, in one place.

LEARN BY CARING
Decoherence is the hardest idea in quantum computing to feel in your gut. Qubitchi makes it personal: you come to understand what T2 means because your pet's life depends on it. No equations required — just attention.

PRIVATE BY DESIGN
Qubitchi collects nothing about you. It fetches public hardware data and keeps your adopted pets on your device. No accounts, no tracking, no ads.

Qubitchi is an independent project and is not affiliated with, or endorsed by, IBM.


## Version history (last 3 releases)

### 1.3 — 2026-06-22

Your qubit comes to the wrist.

Qubitchi is now on Apple Watch, showing the same pet you're watching on your iPhone — its mood, live, whenever you glance down. Swipe up and you'll find its badges too.

Every reading is real telemetry from IBM Quantum hardware, as ever.

### 1.2 — 2026-06-19

Get to know your qubit a little better.

  • Breeds — every pet now shows its chip family. IBM names its processors after birds, so say hello to your Heron, Nighthawk, or
  Eagle, each with its own badge.

  • Vital signs — see your qubit's single-qubit gate error and gate speed, alongside its coherence times.

  • Share my Qubitchi — turn your pet into a shareable card (its mood, breed, and the real machine it calls home) and send it
  anywhere.

  • Lock Screen & StandBy widgets — your pet's mood, a glance away.

  Every reading is still live telemetry from real IBM Quantum hardware.

### 1.1 — 2026-06-18

No release notes.

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-25.*