I had used Duolingo for a while, trying to brush up on my Spanish. Now, I’ve been using its sister app to brush up on my math skills. Duolingo Math brings an easy-to-use visual approach to learning math with a a multitude of unique input methods and puzzles. The app feels more like a fun brain teaser app rather than schoolwork.

There’s a large built-in audience for Duolingo Math. I believe what made the original Duolingo app as popular as it was its unique design and gamification. More on the latter in a moment. Duolingo is bright, colorful, with a clean modern look. There are no drop shadows or gradients but tons of original artwork throughout the app. The app’s primary colors come through of blue and green with achievements highlighted in gold. The color choices match the icon and the brand’s iconic bird mascot that make the app feel part of the Duolingo family. The colors are also on the pastel side, again keeping things on the modern side of design.

Something about Duolingo Math just makes it fun. It doesn’t give you questions and ask you to type out an answer after you’ve solved it, but rather comes up with unique ways for you to see the problem and the answer. On some questions, you can use your finger to write out the answer with automatic character recognition of the numbers you draw. Others you drag and drop parts of an equation around, some act as a matching game. These all feel natural and designed for a mobile touch screen.

But enough about other people's apps.

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