Today's
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Free

VisualMath 4D is a professional graphical calculator. It allows you to browse through a collection of built-in functions like trigonometrical, rounding, and sum and product or you can compute your own. Functions can be drawn in 2D, 3D, and 4D all with a time variable. You’re also able to save your functions, rotate and zoom in on the graph in three dimensions, and display multiple graphs at once.

PhotoTangler doesn’t require any professional photo editing experience to achieve great results. Simply import related photos or take new ones from within the app. You’re able to crop photos down if necessary. PhotoTangler will automatically apply a fade, which can be adjusted in a variety of ways. Layer as many photos as you like before finishing off your work of art with a background color and text.

Tally allows you to count anything with ease via iPhone or Apple Watch. In portrait orientation, a single tally counter takes up the majority of the screen. Buttons around the edge allow you to quickly count up and down by values of one, five, and 10. In landscape orientation, the screen splits and allows you to manage two separate tally counters at once. Tally also includes six-sided and 20-sided dice in case you need them.

The app starts your child off by having them create simple geometry like triangles and squares. As they progress, the lessons will introduce them to more complex 3D geometry like icosahedron and tetrahedron. Guided views provide more than 50 levels of Euclidean geometry, and dozens of step-by-step videos are available as well. Your child is also able to create models on their own and share them with the world.