Microsoft Math Solver

» see mathsolver.microsoft.com as it lived, on the wayback machine

~ the eulogy ~

When this shipped in late 2019 I was thirty five and the last time anyone made me show working on paper was a long way behind me. That is most of why Math Solver never landed with me and most of why it existed at all. It was built for someone sitting in front of a problem set at eleven at night, and I have not been that person since the university years.

The app reached iOS in November 2019 and Android that December, with a web version at mathsolver.microsoft.com and a browser extension for Edge. You typed a problem, or wrote it with a finger, or held the camera over a page in a notebook and let it read your handwriting. What came back was not only a result. It laid out the steps, offered more than one method where more than one existed, drew the graph if the problem had a graph, and linked to video lessons and practice sets for the same topic.

It was free and it asked for nothing. No account and no upsell, which is worth recording because almost nothing else Microsoft shipped that decade behaved like that. It worked in dozens of languages, and the handwriting recognition was the piece that made it feel like a research project that had escaped the lab.

~ the dossier ~

~ the desktop years ~

The lineage runs further back than the app does. Microsoft Math 3.0 was a boxed product you paid for, with product activation on it, a graphing calculator and a library of formulas, from the era when educational software still arrived in a box with a hologram sticker. It won a Tech and Learning Award of Excellence in 2008.

Then in January 2011 Microsoft Mathematics 4.0 came out free, in 32-bit and 64-bit editions, with the ribbon interface that Office had introduced. Microsoft quietly took the download away some years later without much of a notice. The mobile solver in 2019 was the same intention rebuilt for a phone camera, eight years on.

~ where it went ~

The first cut landed in September 2024, when the Math Solver account posted that the mobile apps were being discontinued and that the web version was all you needed. Then in June 2025 the same account posted that Math Solver would be retired on 7 July 2025, and pointed people at Math Assistant in OneNote and Math Progress in Teams, both of which require a Microsoft 365 Education tenant. A free tool for anyone with a phone was replaced by a feature inside a product your school has to buy.

The Microsoft Q and A thread asking for it back is still open. The replies are from teachers and students, and the most common complaint is not that the answer is gone, since any chatbot will produce an answer now. It is that the chatbot will not reliably show the intermediate lines, and the intermediate lines were the entire product.

~ what answers there today ~

mathsolver.microsoft.com still returns 200. What loads is a small single-page shell with a hero banner and two cards, one for Math Assistant in OneNote and one for Math Progress in Teams. I pulled the JavaScript bundle to see what strings the page was built to render and there is no solver in it, only a landing page and its localization keys, and the English string file those keys point at now returns BlobNotFound from Azure storage.

So the domain is alive, the page is a signpost, and the signpost's own text is half missing. That is a more honest state than a 404 would have been.

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