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Life & fun · alternatives · 2026

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24 alternatives to The First Quantum Algorithm

Much more than a post (again) What is the quantum theory? As said by quantumexperience official site by IBM, it’s an elegant mathematical theory able to explain the counterintuitive behavior of subatomic particles, most notably the phenomenon of entanglement. In the late twentieth century it w

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. The First Quantum Algorithm launched in 2019; newer entries below may have overtaken it.

  1. 1

    Checkers with quantum theory rules

    2018 · apps.apple.com · its alternatives →

  2. 2

    Simulate reverse causality using quantum suicide. Contribute to karldray/quantum development by creating an account on GitHub.

    2016 · github.com · its alternatives →

  3. 3

    filippo.io/mlkem768 is a pure-Go implementation of the post-quantum key exchange mechanism ML-KEM-768 optimized for correctness and readability.

    2024 · words.filippo.io · its alternatives →

  4. 4

    I wanted to make the simplest app to introduce myself and others to quantum computing. Introducing, Schrödinger's Coin. Powered by a simple Hadamard gate[0] on IBM quantum, with this app you can directly interact with a quantum system to experience true randomness. Thoughts? Could you see any use cases for yourself of this? Or, does it inspire any other ideas of yours? Curious what others on HN think! [0] https://en.wikipedia.org/wiki/Quantum_logic_gate#Hadamard_ga...

    2025 · quantum.orgsoft.org · its alternatives →

  5. 5

    Intuitive user interfaces for quantum computing - make it an accessible & business-available technology. We aim to build the standard for interaction with quantum systems.

    2017 · quantumgame.io · its alternatives →

  6. 6
    BlueQubit▲109

    The simplest way to access a quantum computer

    2023 · app.bluequbit.io · its alternatives →

  7. 7GF

    A study guide for quantum mechanics, derived from first principles.

    Jun 2026 · quantum.schols.io · its alternatives →

  8. 8

    A simplified version of the Wave Function Collapse algorithm - victorqribeiro/simpleWFC

    2022 · github.com · its alternatives →

  9. 9

    Hey HN. I'm Colton (YC S21, ex-Acorns), one of the founders of Postquant Labs. My cofounder Richard is a cryptographer out of Draper Labs and DARPA. We're building Quip.Network, the first distributed quantum compute network. We just opened our testnet and wanted to share it here. The basic problem: quantum hardware is here and already competitive on certain optimization problems, but for most people, there's no way to access it. The machines cost millions and the hardware and research are gated by the companies who own them. Also, quantum providers regularly have machines sitting idle…

    Apr 2026 · quip.network · its alternatives →

  10. 10

    Quantum computing in your browser.

    2020 · quantumjavascript.app · its alternatives →

  11. 11
    QU3▲133

    Quantum-safe MCP servers for private, verifiable inference

    2025 · its alternatives →

  12. 12

    Hi! I built this to teach myself how a quantum circuit simulator works. It's about 1000 lines of Python, aiming to be understandable more than being fast or robust. It's not meant to compete with anything else - just a personal project to really get clear on the under-the-hood theory of qubits and quantum gates.

    2024 · github.com · its alternatives →

  13. 13

    Hi HN, I turned the freshly published paper “The Constructor Theory of Time” by David Deutsch and Chiara Marletto (arXiv, 13 May 2025) into an executable Python library. What you’ll find • One-to-one translation of the paper’s formalism: Substrates, Attributes, Tasks, Constructors, and task-algebra operators • Possibility / impossibility predicates and counterfactuals encoded exactly as defined • Test suite that mirrors every lemma and example (>95 % coverage, mypy-typed) • Reproductions of key results: time-keeping substrates, irreversibility proofs, quantum branching tasks, and a…

    2025 · github.com · its alternatives →

  14. 14

    Q3AS, deployment & execution of quantum algorithms by Aqora

    2024 · aqora.io · its alternatives →

  15. 15
    QMsolve▲72

    Visualizing quantum physics with Python

    2021 · github.com · its alternatives →

  16. 16AQ
  17. 17

    Hey HN! I've created a quantum coin flip demo leveraging IBM's quantum computing tech to explore true randomness. It's a primer on into how quantum mechanics can solve classical computing's randomness limitations, crucial for cryptography and secure systems. Would love your thoughts on its application and quantum computing's future role in tech!

    2024 · quantumcoinflip.com · its alternatives →

  18. 18

    Irreverent overview of ideas in math, CS & philosophy

    2016 · cambridge.org · its alternatives →

  19. 19

    The quantum computer game

    2016 · mequanics.com.au · its alternatives →

  20. 20

    A quantum chemisty library in jax. Contribute to lowdanie/hartree-fock-solver development by creating an account on GitHub.

    Jan 2026 · github.com · its alternatives →

  21. 21

    The chain reaction game about saving Quantum space on iOS.

    2016 · apps.apple.com · its alternatives →

  22. 22OS

    We’ve just released an open-source library for solving the Maximum Independent Set (MIS) problem with neutral atom quantum computing, running on both quantum processing units (QPUs) and classical hardware, thanks to emulators. This project is the result of collaboration between Pasqal, academic researchers, and industry partners, aiming to make it practical to experiment with quantum approaches to hard combinatorial optimization tasks. The MIS problem appears in real-world scenarios like scheduling, resource allocation, and network optimization, areas where classical solvers often struggle…

    2025 · its alternatives →

  23. 23LQ
  24. 24

    A puzzle with photons, superposition and quantum measurement

    2017 · quantumgame.io · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →