Sigma Notepad Calculator

What it does

Type math in plain English on iPhone. Write a line, results appear live in a second column. Edit anything, everything updates. Currencies, unit conversions, variables, aggregates, dates, math functions, hex. All inline, all editable. Free with three sheets. Pro unlocks unlimited sheets, iCloud sync, and export to PDF, Markdown, or plain text.

• IM
  I made a web-based notepad with a built in unit calculator2022 · numpad.io · ▲488

  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.

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  iPad Calculator2024 · ▲188

  Revolutionizing calculations on iPad – smarter, faster, best

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  A free-form calculator for Chrome

• FA
  Figr.app – a multi-user, notepad style calculator (desktop app)2022 · figr.app · ▲275

  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:…

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  Soulver 3 for Mac2019 · ▲194

  A smart notepad with a built in calculator

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  Paperspade2017 · ▲211

  Type math easily through just English text!

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• NW
  Needle: We Distilled Gemini Tool Calling into a 26M Model▲776

  Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…

  Life & fun · May 2026 · github.com

• FM
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