Is there a Duolingo for maths? Yes. Here's the honest tour

What people actually mean by the question

Nobody asking for “Duolingo for maths” wants an owl. They want the three things Duolingo nailed: open the app and it knows what you should do next, sessions short enough to always fit, and progress you can feel. That bundle, next-step clarity, small sessions, visible progress, is a perfectly reasonable demand to make of a maths app. Several products deliver parts of it. None delivers it the way Duolingo does for French, and there is a structural reason worth understanding before you choose.

The honest tour

Duolingo Math, from Duolingo itself, is free and genuinely fun for mental arithmetic, and that is roughly where it ends: narrow coverage, no meaningful diagnostic, not a route to algebra or calculus. Brilliant has the most Duolingo-like polish of the serious contenders, beautiful interactive lessons and a habit loop, with the common criticism that it samples topics rather than building a complete, connected foundation. Khan Academy remains the free encyclopedia: comprehensive, trustworthy lessons, with the sequencing left to you, which is why “what order do I do it in” is its communities’ eternal question. Math Academy is the heavyweight: rigorous, adaptive, demanding, paid, and fixed-rail; our full comparison is here. All four are real answers for the right person, and we would rather you pick the right one than pick us wrongly.

Where the Duolingo Math course actually lives now

Worth clearing up, because a lot of the advice online is stale. The standalone Duolingo Math app was pulled from the App Store at the end of November 2023, and its content moved inside the main Duolingo app alongside the language courses; a redesign in September 2025 regrouped its units into grades and topics. So if a two-year-old forum thread tells you to download a separate maths app, that app no longer exists. You install Duolingo and pick Math as a course. Practically, that also tells you how Duolingo thinks about it: maths is a course inside a language app, sharing the same hearts, gems and streak machinery, not a separate product with its own model of what you know.

The structural bit: maths punishes streaks differently

Here is why the question keeps being asked even though apps keep existing. In a language, knowledge is a net: holes are annoying but the net still catches fish. In maths, knowledge is a tower: one missing floor and everything above it wobbles, regardless of how many days in a row you showed up. A streak model on its own happily marches you forward over a hole, and the app cheerfully reports progress while understanding quietly collapses. The missing ingredient is not gamification. It is a map of what stands on what, consulted before every next step.

The one question that separates these apps

Here is a test you can run on any maths app in thirty seconds. Suppose you cannot reliably add fractions with unlike denominators. Ask: if that were true of me, would this app find out, and would it change what it showed me next? Duolingo Math would not; it would keep serving whatever unit you are on. Brilliant would not; you would simply find one lesson harder than the last and blame yourself. Khan Academy could, but only if you already suspected fractions and went looking, because you choose the course before anything gets measured. Math Academy would, inside the track you enrolled on. Consiliae is built around that question, which is what the scan is: an answer before you spend a month on the wrong thing. Whichever app you end up with, how it answers that question is what you are actually choosing between.

So: which one should you use?

If you want five pleasant minutes of mental maths a day, Duolingo Math is free and does exactly that. If polish and curiosity keep you going, Brilliant earns its subscription for many people. If you are disciplined, funded, and want maximum rigour on a fixed rail, Math Academy. If you want free lessons and can manage your own path, Khan Academy plus a retention system. And if your honest situation is “I don’t know where I stand, what I’m missing, or what order to go in”, that is the diagnosis-and-sequencing problem, it is the reason most maths comebacks stall, and it is the specific problem Consiliae exists to solve: the map, the scan, and review built in, free to start, no account needed to look.

Money, plainly, because a tour that dodges it is not an honest one. Duolingo Math and Khan Academy cost nothing at all. Brilliant and Math Academy are subscriptions. Consiliae is $9.99 a month or $49.99 a year, with the placement scan and the concept library free and usable without an account, so you can find out where you stand and decide afterwards whether the sequencing and the review are worth paying for. That ordering is deliberate: the diagnosis is the part you need before you can sensibly judge any of the rest, including us.

When none of this applies to you

Two cases where the argument above is simply wrong. If you are a school student with a teacher who sets the order and marks the work, the diagnosis and sequencing jobs are already being done for you by a human, and what you want from an app is drill and motivation, which is exactly what the streak apps are best at. And if you need one specific topic by Friday, compound interest for a job test say, no adaptive system beats searching that topic and working twenty problems tonight. A map and a scan earn their keep over months, on a route whose end you cannot see. For a week-long errand they are overkill, and we would rather say so than sell you a subscription you will cancel in February.