Aurora Calculator – 991-Style
991-style scientific calculator for Android with PROB & BASE
What it does
Aurora is a Swiss-army-knife scientific calculator for Android. It combines a 991-style sci calc with matrix & base-N modes, PROB/STAT/LOG tools, constants, memory, DMS and rounding helpers. On top you get 2D/3D graphing, algebra, converters, geometry and finance modules – all in one clean, offline-friendly app.
Does a similar job
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Community, All the HN belong to you. This is an archive of hacker news that fits in your browser. When I made HN Made of Primes I realized I could probably do this offline sqlite/wasm thing with the whole GBs of archive. The whole dataset. So I tried it, and this is it. Have Hacker News on your device. Go to this repo (https://github.com/DOSAYGO-STUDIO/HackerBook): you can download it. Big Query -> ETL -> npx serve docs - that's it. 20 years of HN arguments and beauty, can be yours forever. So they'll never die. Ever. It's the unkillable static archive of HN and it's…
Dev tools · Dec 2025 · hackerbook.dosaygo.com
