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Alternatives

Products that do what Nexus Calculator does

Advanced calculator suite for desktop and mobile

  1. 1FA

    Hi all, just posting an update to my previous Show HN, where I announced a side-project I worked on which was a (web version) of a multi-user, notepad style calculator: https://news.ycombinator.com/item?id=31817997 After a couple of user requests (and having a good think about it) I decided to migrate the web UI to create a Mac and Windows desktop app. After using it a little bit, I feel this is a much better experience than the webapp, and reduces a lot of the friction if I wanted to run a few small calculations. You can find the download links below:…

    2022 · figr.app

  2. 2AD

    A new calculator software cannot really bring attention (https://chachatelier.fr/chalk/) However, I wrote a full article explaining why I had to build something "new" that does not behave like usual desktop calculator softwares : TL;DR All "small" calculator softwares I know share the same design flaws. And the GUI is not the only stumbling block in their poor efficiency. Handling correctly numerical approximations - expected or not - is crucial to trust the results. It is usually not done in lightweight tools. It should. So I prove that if I could do it, OS manufacturers…

    2022

  3. 3
    Numbr289

    An elegant calculator for the web

    2021

  4. 4IM

    Hi HN It also supports percentages, dates and variables. I've been working on this alone for a few years now, so would love to get some feedback.

    2022 · numpad.io

  5. 5

    premium calculator

    Jun 2026 · nexus-calculate-unbound.lovable.app

  6. 6KA
  7. 7
    KnightOS136

    An open-source OS for calculators

    2016

  8. 8
    NumPad118

    A powerful text editor and calculator for the web

    2022

  9. 9

    The Ultimate Calculators & Developer Tools Platform

    Jul 2026 · nexuscalculator.net

  10. 10
    Calculo195

    Calculator from the future

    2024

  11. 11

    A free-form calculator for Chrome

    2022

  12. 12
    Webacus106

    Swiss-army knife for developers

    2022

  13. 13

    The ios-style calculator that knows you

    Sep 2025

  14. 14IG

    I’ve always found that online calculators tend to have bad UIs, especially on mobile. Most of the calculator websites I’ve come across use outdated and inconvenient ways of inputting data, or they format the results in confusing ways. I’ve noticed that fraction calculators (especially mixed fractions) are terrible to use, even on desktop. I haven’t built one of those yet, but it’s something I’m planning to tackle soon. This is a project I’ve always wanted to work on, but I’m relatively new to this space. So far, I’ve created a collection of simple calculators focused on math and finance. I’d…

    2025

  15. 15

    A Simple & Gorgeous Android Calculator for Everyday Use

    2021

  16. 16

    Extendable calculator for the 21st century ⚡

    2020

  17. 17

    Realtime, multi-user notepad calculator

    2022

  18. 18IM

    https://github.com/siraben/ti84-forth Hi HN! For the past year I've been getting into programming in Z80 assembly (especially for the TI-84+). More recently I've been learning about the Forth programming language and after a lot of searching online (in vain) for a Forth interpreter for the TI-84, I decided to write one myself. It's been fun demoing this to others, because it's a very unexpected use of a calculator. It's my largest project to date, and I'm interested to know what the HN community thinks, please feel free to critique my code! -- Ben

    2018

  19. 19CO
  20. 20

    991-style scientific calculator for Android with PROB & BASE

    Dec 2025

  21. 21NN
  22. 22

    Fast, free & privacy-focused online calculator suite

    Jul 2026 · flashcalculator.pages.dev

  23. 23CH

    Every Calculation Tool You'll Ever Need. Growing list of calculators, in a clean, simple design.

    2025 · calculation-hub.com

  24. 24

    Calculator toolkit Math, Finance, Fitness, shipping & more.

    Jun 2026 · calculatorslabs.com

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